# UTAK > UTAK is a family-owned and operated quality control (QC) materials manufacturer specializing in control solutions for laboratories that need precision, flexibility, and real human matrices in their quality control programs, especially when the off-the-shelf solutions from larger manufacturers fall short. Founded in 1973 by toxicology chemist Larry Plutchak, we've built over 50 years of specialized expertise in manufacturing QC materials for clinical, forensic, and core reference testing laboratories worldwide. - [Quality Controls for Clinical and Toxicology Laboratories | UTAK](https://utak.com/): UTAK handcrafts Quality Controls using 100% REAL human matrices reducing risk and costs for clinical and toxicology laboratories. - [UTAK - Laboratory Licenses & Accreditations](https://utak.com/about-utak/licenses-accreditations/): UTAK is registered with the US Food and Drug Administration as a Medical Device Establishment. Learn more about our licenses and accreditations. - [Contact Us - UTAK | Control Material Manufacturers](https://utak.com/contact-utak/): AT UTAK, we offer labs a broad range of stock control in urine, serum, blood, oral fluid, and more. Contact UTAK today to learn more! - [Is Your QC Helping or Hurting Your TDM Patients? - Utak](https://utak.com/blog/is-your-qc-helping-or-hurting-your-tdm-patients/): In TDM, small QC errors can lead to big clinical risks. Discover how UTAK's QC improves accuracy, compliance, and patient safety. - [FAQs on Our Products and Services | UTAK](https://utak.com/faq/): What is a matrix or baseline sample? Can validity controls be shipped at ambient temperature? Click to get answers to a wide range of questions. - [Privacy Policy - Utak](https://utak.com/privacy-policy-old/): UTAK's Privacy Policy explains how we collect, use, and protect your personal information on our website and services. Learn about your privacy rights. - [Blog | Latest News | UTAK - Human Matrix Control Materials](https://utak.com/blog-news/): Helping organizations stay ahead of the competition. Explore the blog, the latest news, and expert tips on using quality controls in testing. - [Quality Control Technical Support | UTAK](https://utak.com/products-services/qc-tech-support/): Quality controls don’t always behave like they’re supposed to. When you buy QCs from UTAK, you’ll always have access to our technical support. - [UTAK - International Distribution](https://utak.com/about-utak/distributors/): UTAK offers products to clinical, forensic, and environmental toxicology labs in over 30 countries. Fill out the form to find your local distributor. - [Custom QC - Utak](https://utak.com/personalized-qc/): UTAK Personalized QC delivers custom quality controls tailored to your exact testing needs. Choose your analytes, base matrix, and concentration! - [Privacy Notice/Terms Of Use - Utak](https://utak.com/privacy-policy/): UTAK's Privacy Notice and Terms of Use. Learn how we protect your personal data, use cookies, and handle information on our QC products website. - [Starting Archives - Utak](https://utak.com/product-category/starting/): Shop UTAK's starting QC materials including blank human serum, drug-free urine, plasma, and whole blood. 100% real human matrices for lab testing. - [Drugs of Abuse | Custom Quality Controls](https://utak.com/product/custom-drugs-of-abuse-quality-controls/): UTAK can spike any 100% REAL HUMAN (or synthetic) matrix with any combination drugs of abuse resulting in a Quality Control tailored just for your needs. - [Blank Quality Control Matrix | UTAK](https://utak.com/products-services/blank-quality-control-matrix/): Whether you’re looking for 100% human blood, urine, serum, or require specialty material, UTAK has the high-quality blank matrices you need for your QC. - [Stock Archives - Utak](https://utak.com/product-category/stock/): Browse UTAK's stock laboratory quality control products including drug testing controls, therapeutic monitoring, and trace elements for clinical labs. - [Custom Quality Controls for Lab Testing | UTAK](https://utak.com/products-services/custom-quality-controls/): UTAK offers Custom Quality Controls ready to use or store. Not sure what you need? Our consultants can help. Contact us today! - [Products and Services | UTAK](https://utak.com/products-services/): Whether your lab is looking for blank matrices, Stock QCs, or Custom QCs, UTAK has the answer. Explore our full range of QCs and services. - [Endocrinology | Custom Quality Controls](https://utak.com/product/custom-endocrinology-quality-controls/): We can take any matrix, whether it's 100% REAL human or a synthetic matrix, and spike it with any combination of analytes tailored for your needs. - [Trace Elements | Custom Quality Controls](https://utak.com/product/custom-trace-elements-quality-controls/): We can take any matrix, whether it's 100% REAL human or a synthetic matrix, and spike it with any combination of Trace Elements tailored for your needs. - [SSRI 12 Level 1 | Urine Quality Control](https://utak.com/product/ssri-12-level-1/): The Control Freaks at UTAK offer 100% REAL human matrices. Here are product details & sample request form for our stock. - [Stock Quality Control Matrix | UTAK](https://utak.com/products-services/stock-quality-control-matrix/): UTAK offers the most expansive selection of high-quality Stock Quality Controls for laboratories. With 200+ analytes and matrices, we have you covered. - [Career Opportunities - UTAK](https://utak.com/about-utak/careers/): UTAK’s obsession lies not in taking control but in giving it. We provide a place for forward thinkers to work and build a thriving career. Apply today! - [UTAK Sitemap - Complete Site Navigation for Quality Control Products & Resources](https://utak.com/sitemap/): Founded in 1973 and trusted by many, UTAK has been providing labs with controls they need for all kinds of analyses. Learn about us and our proven track record. - [About UTAK - Quality Control Materials Manufacturer Since 1973 | Laboratory Testing Solutions](https://utak.com/about-utak/our-story/): Founded in 1973 and trusted by many, UTAK has been providing labs with controls they need for all kinds of analyses. Learn about us and our proven track record. - [SSRI 12 Level 2 | Urine Quality Control](https://utak.com/product/ssri-12-level-2/): The Control Freaks at UTAK offer 100% REAL human matrices. Here are product details & sample request form for our stock. - [How UTAK Created the First Custom QC for Xylazine](https://utak.com/blog/case-study-xylazine-custom-qc/): Learn how UTAK collaborated with a regional hospital chain to gather trustworthy results in the opioid crisis and create the first custom QC for Xylazine. - [Therapeutic Drug Monitoring | Custom Quality Controls](https://utak.com/product/custom-therapeutic-drug-monitoring-quality-controls/): We can take any matrix, whether it's 100% REAL human or a synthetic matrix, and spike it with any combination of Therapeutic Drugs tailored for your needs. - [Laboratory Testing Controls & QC Products | Drugs of Abuse, Therapeutic Monitoring - UTAK](https://utak.com/product-catalogue/): We manufacture QC chemicals that reduce risks and costs for labs. Search through “categories,” “matrix,” or “form” to discover your solution. - [Pain Management | Custom Quality Controls](https://utak.com/product/custom-pain-management-quality-controls/): We can take any matrix, whether it's 100% REAL human or a synthetic matrix, and spike it with any combination of Pain Management Analytes that you need. - [Get a Quote - Utak](https://utak.com/get-a-quote/): Get a quote for quality control products from Control Freak. Fast response within 1 business day, bundle pricing, and volume discounts available. - [Immunosuppressants | Custom Quality Controls](https://utak.com/product/custom-immunosuppressants-quality-controls/): We can take any matrix, whether it's 100% REAL human or a synthetic matrix, and spike it with any combination of Immunosuppressants tailored for your needs. - [Accessibility Statement | UTAK](https://utak.com/accessibility-statement/): UTAK has taken careful measure to provide a fully accessible and optimized user experience for all site visitors. - [Tacrolimus Archives - Utak](https://utak.com/product-category/analytes/tacrolimus/): Tacrolimus is the cornerstone of transplant immunosuppression, requiring routine trough monitoring across organ programs. Find QC at UTAK. - [Sirolimus Archives - Utak](https://utak.com/product-category/analytes/sirolimus/): Sirolimus TDM guides dosing in kidney transplant rejection prevention and calcineurin inhibitor-sparing regimens. Explore immunosuppressant QC at UTAK. - [Hydromorphone Archives - Utak](https://utak.com/product-category/analytes/hydromorphone/): Hydromorphone poses unique interpretive challenges as both a prescribed opioid and a metabolite of hydrocodone and morphine. View opioid QC at UTAK. - [Morphine Archives - Utak](https://utak.com/product-category/analytes/morphine/): Morphine is the prototype opiate analyte in SAMHSA workplace panels, pain management compliance, and forensic toxicology programs. Find opioid QC at UTAK. - [Tramadol Archives - Utak](https://utak.com/product-category/analytes/tramadol/): Tramadol and its active metabolite O-desmethyltramadol evade standard opiate immunoassays, requiring targeted detection methods. Explore QC options at UTAK. - [Hydrocodone Archives - Utak](https://utak.com/product-category/analytes/hydrocodone/): Hydrocodone is among the most prescribed opioids in the U.S., requiring routine pain management compliance monitoring. Browse QC options at UTAK. - [Codeine Archives - Utak](https://utak.com/product-category/analytes/codeine/): Codeine detection helps differentiate therapeutic opioid use from illicit consumption in pain management and forensic labs. Browse opiate QC at UTAK. - [Tapentadol Archives - Utak](https://utak.com/product-category/analytes/tapentadol/): Tapentadol's dual mechanism of action and invisibility to standard opiate immunoassays make targeted testing essential. Browse pain management QC at UTAK. - [Meperidine Archives - Utak](https://utak.com/product-category/analytes/meperidine/): Meperidine and its neurotoxic metabolite normeperidine are monitored in pain management compliance and forensic toxicology programs. Find opioid QC at UTAK. - [Norbuprenorphine Archives - Utak](https://utak.com/product-category/analytes/norbuprenorphine/): Norbuprenorphine detection alongside buprenorphine confirms actual medication ingestion in MAT and pain management compliance programs. View QC at UTAK. - [Norfentanyl Archives - Utak](https://utak.com/product-category/analytes/norfentanyl/): Norfentanyl is the principal urinary marker for confirming fentanyl exposure in overdose investigations and compliance testing. Explore QC at UTAK. - [Zolpidem Archives - Utak](https://utak.com/product-category/analytes/zolpidem/): Zolpidem is a Schedule IV Z-drug sedative tested in DUID cases involving sleep-driving, forensic panels, and compliance programs. Explore Zolpidem QC at UTAK. - [Buprenorphine Archives - Utak](https://utak.com/product-category/analytes/buprenorphine/): Buprenorphine monitoring is essential to medication-assisted treatment and pain management compliance programs. Browse opioid QC options at UTAK. - [About UTAK - Leading Quality Control Materials Manufacturer Since 1973](https://utak.com/about-utak/): Founded in 1973 and trusted by many, UTAK has been providing labs with controls they need for all kinds of analyses. Learn about us and our proven track record. - [How to Troubleshoot QC Failures in Lab Testing](https://utak.com/blog/common-qc-material-failures/): Learn how to troubleshoot common QC failures to protect test results, maintain compliance status with regulators, and increase efficiency. - [Do QC Materials Exhibit Matrix-Related Bias Effects? - Utak](https://utak.com/blog/do-qc-materials-exhibit-matrix-related-bias-effects/): One of the most troublesome aspects facing laboratories is the ‘Matrix Effect.’  See how to avoid the Matrix Effect in your Quality Controls. - [View Qualty Controls by Analyte - UTAK](https://utak.com/product-category/analytes/): From drugs of abuse and pain management to therapeutic drug monitoring and endocrinology, find the QC materials that your lab needs at UTAK. - [Making Your Own Quality Control Vs. Using 3rd Party QC - Utak](https://utak.com/blog/making-your-own-quality-control-vs-using-3rd-party-qc/): Compare making your own lab quality control vs using 3rd party QC. Discover how UTAK's real human QC materials save labs time, money and resources. - [Resource Archives - Utak](https://utak.com/blog/posttype/resource/): Access lab quality control resources, articles, and expert guidance. Find FDA compliance checklists, QC troubleshooting tips, and industry insights for labs. - [Case Study Archives - Utak](https://utak.com/blog/posttype/case-study/): Explore UTAK's case studies showcasing innovative quality control solutions for healthcare labs. Learn how we develop custom QC materials for emerging challenges. - [White Paper Archives - Utak](https://utak.com/blog/posttype/white-paper/): Browse UTAK's white papers and resources on laboratory quality controls. Get expert insights on custom QC solutions, industry news, and more. - [FDA Final Rule Compliance Checklist for Testing Labs - UTAK](https://utak.com/blog/fda-final-rule-compliance-checklist/): The FDA's Final Rule for LDTs started a four-year countdown. Use this checklist to identify priorities to maintain testing lab compliance. - [What Does the FDA’s Final Rule on LDTs Mean for Your Lab?](https://utak.com/blog/fda-final-rule-ldt-what-to-know/): The FDA Final Rule on LDTs upends compliance standards. See what it mandates along with timelines and strategies to ensure your lab is compliant. - [Article Archives - Utak](https://utak.com/blog/posttype/article/): Expert insights on laboratory testing, quality control, and clinical diagnostics. Stay updated on FDA regulations, custom QC solutions, and industry trends. - [SMx Oral Fluid | Synthetic Matrix for Lab Quality Controls](https://utak.com/product/smx-oral-fluid/): SMx specialty oral fluid mimics human matrix. Designed as an alternative option to real human matrices for toxicology, clinical, and reference labs. - [SMx Hair | Synthetic Matrix for Quality Control |](https://utak.com/product/smx-hair/): SMx synthetic hair mimics human matrix. Designed as a synthetic alternative option to real matrices for toxicology, clinical, and reference labs. - [Blank Whole Blood | Frozen Quality Control for Testing Labs |](https://utak.com/product/blank-whole-blood/): 100% real whole blood quality control. Ensure calibration by using a human matrix for toxicology, clinical, and reference labs. - [Normal Human Serum | 100% REAL Human Matrix for Labs](https://utak.com/product/normal-human-serum/): UTAK's 100% REAL human serum is carefully screened and tested to ensure lot-to-lot consistency for your laboratory testing and quality control. - [Blank Serum | 100% Real Human Serum for Labs | UTAK](https://utak.com/product/blank-serum/): Our 100% real human serum is designed for toxicology, clinical, and reference laboratories. UTAK's delivers stock and custom third-party quality controls. - [SMx Cerebral Spinal Fluid | Synthetic Matrix for Quality Control](https://utak.com/product/smx-cerebral-spinal-fluid/): SMx specialty cerebral spinal fluid mimics human matrix. Designed as an alternative option to real matrices for toxicology, clinical, and reference labs. - [Defibrinated Plasma | 100% REAL Human Matrix Quality Control](https://utak.com/product/defibrinated-plasma-2/): Our 100% real human defibrinated plasma for lab quality controls contains no preservatives, no fortifications, and screened negative for drugs of abuse. - [Certified Drug Free Urine (Frozen) | Quality Control for Labs |](https://utak.com/product/certified-drug-free-urine-frozen/): 100% real human urine for labs, certified free of common drugs of abuse. Human matrix for toxicology, clinical, and reference labs. - [Certified Drug Free Urine (Liquid) | Quality Control for Labs |](https://utak.com/product/certified-drug-free-urine-liquid/): 100% real human urine for labs, certified free of common drugs of abuse. Human matrix for toxicology, clinical, and reference labs. - [Nordiazepam Archives - Utak](https://utak.com/product-category/analytes/nordiazepam/): Nordiazepam is a shared active metabolite of diazepam, chlordiazepoxide, clorazepate, and prazepam in forensic and compliance panels. Browse QC at UTAK. - [Drugs of Abuse Controls Archives - Utak](https://utak.com/product-category/stock/stock-drugs-of-abuse-controls/): Shop drugs of abuse quality controls including cannabinoids, DAU cutoff levels, and bath salts. Available in multiple matrices: urine, serum, oral fluid. - [Uncategorized Archives - Utak](https://utak.com/product-category/uncategorized/): Browse our uncategorized quality control products including custom drugs of abuse, endocrinology, and therapeutic drug monitoring QC solutions. - [Cocaine Archives - Utak](https://utak.com/product-category/analytes/cocaine/): Cocaine and its metabolites are tested across forensic, clinical, and workplace panels in blood, urine, and oral fluid. Explore DAU QC at UTAK. - [Mid Range AED | Serum Quality Controls for Therapeutic Drug Monitoring |](https://utak.com/product/mid-range-aed-ii/): Anticonvulsant quality controls for therapeutic drug monitoring. Common antiepileptic analytes in a 100% real human serum. - [Barbiturates Mid Range Serum Control | Therapeutic Drug Monitoring - UTAK](https://utak.com/product/mid-range-barbiturates/): 100% REAL Human Serum Quality Controls for toxicology, research, and clinical labs. Barbiturates QC for therapeutic drug monitoring or forensic toxicology. - [High Range AED | Serum Quality Controls for TDM |](https://utak.com/product/high-range-aed-ii/): Anticonvulsant quality controls for therapeutic drug monitoring. Common antiepileptic analytes in a 100% real human serum. - [Barbiturates High-Range Serum Control | Therapeutic Drug Monitoring - UTAK](https://utak.com/product/high-range-barbiturates/): A 100% Real normal human serum control with common barbiturate analytes, including phenobarbital and others. Shop Quality Controls at UTAK today. - [Antihypertensives Level 2 Control | Custom QC Serum Control - UTAK](https://utak.com/product/antihypertensives-level-2/): Therapeutic drug monitoring quality controls for hypertension. UTAK uses 100% REAL human serum for our Antihypertensives QC. - [Antihypertensive Control Serum Level 1 | Lab Quality Assurance - UTAK](https://utak.com/product/antihypertensives-level-1/): Therapeutic drug monitoring quality controls for hypertension. UTAK uses 100% REAL human serum for our Antihypertensives QC. - [Antifungals Level 1 - Utak](https://utak.com/product/antifungals-level-1/): Antifungals Level 1 quality control serum for therapeutic drug monitoring. Contains 7 antifungal compounds including fluconazole, voriconazole & more. - [Barbiturates Quality Controls Level 2 | Urine QC for Toxicology |](https://utak.com/product/barbiturates-panel-level-2/): Barbiturates quality control using 100% Real human matrix. Test for pentobarbital, phenobarbital, secobarbital, and others. - [Barbiturates Panel Quality Controls | Urinalysis QC for Toxicology |](https://utak.com/product/barbiturates-panel-level-1/): Barbiturates quality control using 100% Real human matrix. Test for pentobarbital, phenobarbital, secobarbital, and others. - [Vitamin A Archives - Utak](https://utak.com/product-category/analytes/vitamin-a/): Retinol measurement assesses vitamin A status in nutritional deficiency, liver disease, and hypervitaminosis A toxicity cases. Explore QC options at UTAK. - [Cortisol Archives - Utak](https://utak.com/product-category/analytes/cortisol/): Cortisol is central to adrenal function testing, HPA-axis disorder evaluation, and stress response assessment in endocrinology. View steroid QC at UTAK. - [17-OH-Progesterone Archives - Utak](https://utak.com/product-category/analytes/17-oh-progesterone/): 17-OH-Progesterone plays a key role in newborn screening and congenital adrenal hyperplasia detection. Browse endocrinology QC options at UTAK. - [Androstenedione Archives - Utak](https://utak.com/product-category/analytes/androstenedione/): Androstenedione measurement supports the evaluation of hyperandrogenism, CAH, and PCOS in clinical endocrinology. Browse steroid hormone QC options at UTAK. - [MMA Archives - Utak](https://utak.com/product-category/stock/stock-endocrinology/stock-endocrinology-mma/): MMA quality control products for endocrinology labs. Custom endocrinology QC, MMA Level 1 & 2 lyophilized serum controls. Expert consultation available. - [Vitamin D Archives - Utak](https://utak.com/product-category/analytes/vitamin-d/): 25-hydroxyvitamin D testing evaluates bone health, deficiency screening, and supplementation therapy across at-risk populations. View QC at UTAK. - [Amylase Archives - Utak](https://utak.com/product-category/analytes/amylase/): Amylase aids in diagnosing acute pancreatitis and monitoring chronic pancreatic disorders alongside lipase. Explore clinical chemistry QC at UTAK. - [Vitamin E Archives - Utak](https://utak.com/product-category/analytes/vitamin-e/): Alpha-tocopherol is the primary vitamin E analyte measured in nutritional assessment, TPN monitoring, and premature infant care. Browse QC at UTAK. - [Endocrinology Archives - Utak](https://utak.com/product-category/stock/stock-endocrinology/): Shop endocrinology quality controls including MMA, steroids, vitamin A, D, and E controls. Custom QC solutions available in serum matrix, frozen or lyophilized. - [Magnesium Archives - Utak](https://utak.com/product-category/analytes/magnesium/): Magnesium monitoring is essential in cardiac surgery, critical care, and nutritional assessment across more than 300 enzymatic pathways. View QC at UTAK. - [Molybdenum Archives - Utak](https://utak.com/product-category/analytes/molybdenum/): Molybdenum is an essential trace element monitored in occupational exposure, TPN nutrition, and joint prosthesis implant wear settings. Explore QC at UTAK. - [Fluoride Archives - Utak](https://utak.com/product-category/analytes/fluoride/): Fluoride measurement supports occupational health surveillance and clinical toxicology testing across ICP-MS and AAS methods. Find metals QC at UTAK. - [Lead Archives - Utak](https://utak.com/product-category/analytes/lead/): No safe blood lead level exists, making it one of the most monitored toxic metals in pediatric screening and OSHA programs. Browse lead QC at UTAK. - [Calcium Archives - Utak](https://utak.com/product-category/analytes/calcium/): Calcium is among the most ordered analytes in clinical chemistry, essential to parathyroid, bone metabolism, and renal assessments. Explore QC at UTAK. - [Chromium Analytes - Utak](https://utak.com/product-category/analytes/chromium/): Chromium measurement supports orthopedic implant monitoring per FDA guidance and hexavalent chromium occupational exposure screening. View QC at UTAK. - [Manganese Archives - Utak](https://utak.com/product-category/analytes/manganese/): Manganese testing spans occupational exposure surveillance for welders and miners to TPN patient monitoring in clinical settings. Explore metals QC at UTAK. - [Copper Archives - Utak](https://utak.com/product-category/analytes/copper/): Wilson's disease diagnosis, nutritional assessment, and toxicology screening all rely on accurate copper measurement. Find trace element QC at UTAK. - [Zinc Archives - Utak](https://utak.com/product-category/analytes/zinc/): Zinc is a cofactor for over 300 enzymes, making it one of the most clinically significant micronutrients in lab medicine. Find QC at UTAK. - [Aluminum Archives - Utak](https://utak.com/product-category/analytes/aluminum/): Aluminum testing supports dialysis monitoring, occupational exposure assessment, and toxic metal screening. Find trace element QC options at UTAK. - [Nickel Archives - Utak](https://utak.com/product-category/analytes/nickel/): Nickel monitoring spans orthopedic implant ion release, occupational health in electroplating and welding, and allergy testing. Browse QC at UTAK. - [Vanadium Archives - Utak](https://utak.com/product-category/analytes/vanadium/): Vanadium exposure monitoring targets workers in petroleum refining, steel manufacturing, and heavy fuel oil combustion industries. Browse metals QC at UTAK. - [Mercury Archives - Utak](https://utak.com/product-category/analytes/mercury/): Mercury exists in elemental, inorganic, and organic forms, each requiring different specimens for occupational and clinical testing. Find QC at UTAK. - [Selenium Archives - Utak](https://utak.com/product-category/analytes/selenium/): Selenium is an essential trace element monitored in TPN nutrition, Keshan disease diagnosis, and occupational exposure in manufacturing. View QC at UTAK. - [Trace Elements Archives - Utak](https://utak.com/product-category/stock/stock-trace-elements/): Shop trace elements quality controls for labs. Lead, metals, and trace element QC products in serum, urine, and whole blood matrices. Expert consultation available. - [Busulfan Level 2 | Plasma Analyte Screening](https://utak.com/product/busulfan-level-2/): The Control Freaks at UTAK offer 100% REAL human matrices. Here are product details & a sample request form for our stock. Busulfan Quality Controls - [Cadmium Archives - Utak](https://utak.com/product-category/analytes/cadmium/): Cadmium's nephrotoxic effects make it a key target in occupational health, environmental exposure, and clinical toxicology testing. View metals QC at UTAK. - [Methotrexate Level 4 | Human Serum Quality Control for TDM |](https://utak.com/product/methotrexate-level-4/): Therapeutic Drug Monitoring Quality Controls handmade using 100% real normal human serum. QC for clinical labs performing TDM. - [TCA Panel Level 1 | Urine Quality Control](https://utak.com/product/tca-panel-level-1/): The Control Freaks at UTAK offer 100% REAL human matrices. Here are product details & sample request form for our stock. - [High Range Clonazepam | Controlled Substance Quality Control](https://utak.com/product/high-range-clonazepam/): The Control Freaks at UTAK offer 100% human matrices. Here are product details & sample request form for our stock. - [Mid Range Clonazepam | Controlled Substance Quality Control](https://utak.com/product/mid-range-clonazepam/): The Control Freaks at UTAK offer 100% human matrices. Here are product details & sample request form for our stock. - [Benzodiazepines Plus 400 ng/mL | Human Urine QC |](https://utak.com/product/benzodiazepines-plus-400-ngml/): Benzodiazepines Quality Controls using 100% real human urine. Third party quality control for forensic toxicology labs. - [Busulfan Level 1 | Plasma Analyte Screening](https://utak.com/product/busulfan-level-1/): The Control Freaks at UTAK offer 100% REAL human matrices. Here are product details & a sample request form for our stock. Busulfan Quality Control. - [TCA Panel Level 2 | Urine Quality Control](https://utak.com/product/tca-panel-level-2/): The Control Freaks at UTAK offer 100% REAL human matrices. Here are product details & sample request form for our stock. - [Benzodiazepines Plus 100 ng/mL - Utak](https://utak.com/product/benzodiazepines-plus-100-ngml-2/): Benzodiazepines Plus 100 ng/mL testing control for urine drug screening. Contains 25 compounds including alprazolam, diazepam, lorazepam. Order from UTAK today. - [Therapeutic Drug Monitoring Archives - Utak](https://utak.com/product-category/stock/stock-therapeutic-drug-monitoring/): Browse our therapeutic drug monitoring QC products including AED, antifungals, barbiturates & immunosuppressant controls for accurate lab testing. - [Pentobarbital | Real Human Serum Quality Controls for Toxicology Labs |](https://utak.com/product/pentobarbital/): Real Human Serum Quality Controls for toxicology, research, and clinical labs. Pentobarbital QC for therapeutic drug monitoring or forensic toxicology. - [Benzodiazepines Plus 100 ng/mL | Human Whole Blood QC |](https://utak.com/product/benzodiazepines-plus-100-ngml/): Benzodiazepines Quality Controls using 100% real human whole blood. Third party quality control for forensic toxicology labs. - [Methotrexate Level 3 | Human Serum Quality Control for TDM |](https://utak.com/product/methotrexate-level-3/): Therapeutic Drug Monitoring Quality Controls handmade using 100% real normal human serum. QC for clinical labs performing TDM. - [Guide: How to Manufacture Laboratory QC Materials In-House](https://utak.com/blog/lab-qc-material-in-house-manufacturing-guide/): Making QC material in-house gives you total control over testing, but is it the best choice for your lab? Review the QC manufacturing process in this guide. - [Who We Help | UTAK](https://utak.com/about-you/): UTAK ensures your lab can solve its toughest QC problems. Explore our competitively priced, completely customizable quality controls from our reliable team. - [MTX-BASELINE-Samples](https://utak.com/products-services/mtx-baseline-samples/): Instructions for testing your UTAK MTX-BASELINE sample. Learn how to test matrix samples for interference and analytes before custom product manufacturing. - [Navigating Your Path to a Successful Lab Career: A Guide for University Students - Utak](https://utak.com/blog/navigating-your-path-to-a-successful-lab-career-a-guide-for-university-students/): Complete guide for university students pursuing lab careers. Discover lab career paths, gain hands-on experience, and learn about certifications to succeed. - [Calibrators and Quality Controls: What's the Difference? - Utak](https://utak.com/blog/calibrators-and-quality-controls-whats-the-difference/): Calibrators and quality controls both have a similar mission: To ensure accurate results. See the differences between the two. - [Improve Testing with 3rd Party Custom Quality Controls](https://utak.com/blog/custom-cq-for-diagnostic-labs/): 3rd party custom QC helps diagnostic labs improve testing capabilities and achieve accuracy & precision. Learn more about UTAK’s 100% REAL™ custom QC. - [California Association of Toxicologists - Utak](https://utak.com/blog/california-association-of-toxicologist/): UTAK Control Freaks sponsors the California Association of Toxicologists meeting. Quality control solutions for toxicology labs and testing. - [Human Matrices vs. Specialty Matrices in Quality Control Materials](https://utak.com/blog/real-human-vs-specialty-matrices-qc-materials/): Human matrices or specialty matrices in QC materials? Break down the advantages of each so you can make the best decision for your lab. - [The VALID Act Enactment and Ramifications - Utak](https://utak.com/blog/the-valid-act-enactment-and-ramifications/): Learn more about the VALID Act possible modifications to the future of in-vitro diagnostic and laboratory developed testing. - [Amylase Now Available Analyte in UTAK Custom Quality Control Program - Utak](https://utak.com/blog/amylase-now-available-analyte-in-utak-custom-quality-control-program/): UTAK now offers Amylase in our Custom Quality Control Program. Learn how amylase testing benefits forensic, hospital, clinical, R&D and university labs. - [Control Freak Week 2023 Recap - Utak](https://utak.com/blog/control-freak-week-2023-recap/): Recap of Control Freak Week 2023. - [Control Freak Stories- Brown University - Utak](https://utak.com/blog/control-freak-stories-brown-university/): Brown University researchers share how UTAK's SMx Specialty Matrices solved testing challenges and expanded research capabilities in their lab studies. - [The Importance of Reliable and Accurate Diagnostic Testing for Healthcare Providers - Utak](https://utak.com/blog/the-importance-of-reliable-and-accurate-diagnostic-testing-for-healthcare-providers/): Learn why reliable diagnostic testing with quality controls is crucial for healthcare providers. Discover how QCs ensure accurate diagnosis and prevent disease spread. - [5 Reasons to Attend AACC’s 2022 Annual Scientific Meeting and Clinical Lab Expo - Utak](https://utak.com/blog/5-reasons-to-attend-aaccs-2022-annual-scientific-meeting-and-clinical-lab-expo/): Every year, the AACC Annual Scientific Meeting brings together clinical lab professionals from all over the world. See UTAK's reasons why you can't miss it! - [AACC Mass Spectrometry and Separation Sciences Division Meeting - Utak](https://utak.com/blog/aacc-mass-spectrometry-and-separation-sciences-division-meeting/): UTAK sponsors the AACC Mass Spectrometry and Separation Sciences Division meeting Oct 4-5, 2017. Quality control solutions for clinical labs. - [Fun, Learning, Contests.. And More Fun: See you at #SOFT2019! - Utak](https://utak.com/blog/fun-learning-contests-and-more-fun-see-you-at-soft2019/): Join UTAK Labs at SOFT2019! Daily $50 gift card drawings, grand prize Kindle Fire, and social media contests. Visit booth 201 for prizes and limited-edition shirts. - [Latest Threats to Opioid Epidemic Put Further Constraints on Forensic Toxicology Testing - Utak](https://utak.com/blog/latest-threats-to-opioid-epidemic-put-further-constraints-on-forensic-toxicology-testing/): Animal Tranquilizer Xylazine Stands Out as Latest Opioid Epidemic Threat, read more about this emerging threat to the opioid epidemic. - [American Association of Clinical Chemistry (AACC) Booth #3710 - Utak](https://utak.com/blog/american-association-of-clinical-chemistry-aacc/): UTAK Controls attending AACC 2018 at Booth #3710. Join us July 29-Aug 2 for quality control solutions and clinical chemistry expertise. - [The Importance of Quality Control and Calibration in LC-MS/GC-MS Analysis - Utak](https://utak.com/blog/the-importance-of-quality-control-and-calibration-in-lc-ms-gc-ms-analysis/): Learn why quality control and calibration are essential for accurate LC-MS and GC-MS analysis. Expert insights on ensuring precision in analytical chemistry. - [Mass Spectrometry: Applications to the Clinical Labs (MSACL) - Utak](https://utak.com/blog/mass-spectrometry-applications-to-the-clinical-labs-msacl/): UTAK sponsors Mass Spectrometry Applications to Clinical Labs (MSACL) 2018. Visit booth #37 for quality control solutions for clinical labs. - [The Psilocybin Light - Utak](https://utak.com/blog/the-psilocybin-light/): Psychedelic-assisted therapy with microdoses of Psilocybin, can help with depression, alcohol use disorder, and nicotine addiction. - [Control Freak Week 2019: A celebration of what it means to be a part of the UTAK team - Utak](https://utak.com/blog/control-freak-week-2019-a-celebration-of-what-it-means-to-be-a-part-of-the-utak-team/): UTAK celebrates Control Freak Week 2019 with team building activities, awards, and recognition of top performers in our quality control company culture. - [Understanding Toxicology: Examining the Impact of Substances on the Human Body - Utak](https://utak.com/blog/understanding-toxicology-examining-the-impact-of-substances-on-the-human-body/): Learn about toxicology testing: how it detects drugs, alcohol & toxic substances in blood, urine & saliva samples for medical, workplace & legal purposes. - [The Faces of Fentanyl | Drug Awareness Facts and Statistics - UTAK Blog](https://utak.com/blog/the-faces-of-fentanyl/): Learn about the deadly fentanyl crisis. Just 2mg can be fatal. Facts about fake pills, overdose deaths, and fentanyl awareness from UTAK's educational blog. - [Xylazine Now Available Analyte in Drugs of Abuse QC Testing with UTAK - Utak](https://utak.com/blog/xylazine-now-available-analyte-in-drugs-of-abuse-qc-testing-with-utak/): UTAK now offers xylazine as an analyte option in custom drugs of abuse QC testing for forensic labs. Enhanced accuracy for emerging drug detection. - [The Control Freaks are celebrating Lab Week 2019 - Utak](https://utak.com/blog/the-control-freaks-are-celebrating-lab-week-2019/): The hard work of laboratory professionals often goes unnoticed. The Control Freaks are celebrating with a Photo Contest. - [Society of Forensic Toxicologists (SOFT) - Utak](https://utak.com/blog/society-of-forensic-toxicologist-soft/): UTAK sponsored the SOFT 2018 conference and gave away an iPad at booth #401. Learn about our involvement with forensic toxicology professionals and quality control solutions. - [UTAK + Santa Clarita Business Journal - Utak](https://utak.com/blog/utak-santa-clarita-business-journal/): Read about UTAK's feature in the SCV Business Journal with CEO Jim Plutchak. Discover insights from the leading quality control testing company. - [The Faces of Fentanyl: Understanding America's Deadliest Drug Crisis - UTAK](https://utak.com/blog/the-faces-of-fentanyl-2/): Learn about fentanyl dangers, overdose statistics, and prevention. Just 2mg can be fatal. Educational resources for fentanyl awareness and safety. - [Book a Consultation - Utak](https://utak.com/consultation/): Reduce lab risks and costs with UTAK’s QC. Schedule a consultation to improve testing efficiency and reliability! - [Therapeutic Drug Monitoring: The Basics - Utak](https://utak.com/blog/therapeutic-drug-monitoring-the-basics/): Learn therapeutic drug monitoring basics and how quality controls ensure accurate TDM testing for patient safety and effective drug treatments. - [Counting the days until AACC's 71st annual Scientific Meeting and Clinical Lab Expo! - Utak](https://utak.com/blog/counting-the-days-until-aaccs-71st-annual-scientific-meeting-and-clinical-lab-expo/): UTAK Control Freaks team shares their excitement for AACC's 71st Annual Scientific Meeting in Anaheim. Visit booth #1038 for lab quality control solutions. - [Staying Ahead of the Curve: How Labs can Monitor New Drugs of Abuse Trends via the Dark Web - Utak](https://utak.com/blog/staying-ahead-of-the-curve-how-labs-can-monitor-new-drugs-of-abuse-trends-via-the-dark-web/): Learn how labs can ethically monitor emerging drugs of abuse trends via dark web analysis. Expert guidance on tools, methods, and best practices for laboratories. - [What you missed at SOFT 2019 - Utak](https://utak.com/blog/what-you-missed-at-soft-2019/): UTAK Laboratories recaps highlights from SOFT 2019 conference including prize winners, new product debuts, and Control Freak photo booth fun. - [UTAK's Latest Website Features - Utak](https://utak.com/blog/utaks-latest-website-features/): Discover UTAK's latest website features including improved product filtering, custom QC options, and account management for quality control testing. - [Amylase Custom Quality Controls | UTAK](https://utak.com/amylase-custom-quality-controls/): Amylase is a digestive enzyme secreted by the pancreas and salivary glands. this enzyme aids in the digestion of carbohydrates. - [Could Biosurveillance Help Fight The Opioid Epidemic? - Utak](https://utak.com/blog/could-biosurveillance-help-fight-the-opioid-epidemic/): Learn how public health biosurveillance programs can help combat the opioid epidemic by detecting drug trends early and enabling faster interventions. - [MTX Approval Samples | UTAK](https://utak.com/products-services/mtx-approval-samples/): Instructions for UTAK matrix testing samples. Learn how to test baseline samples for interference screening and complete MTX-APPROVAL forms for custom QC products. - [Feedback - Utak](https://utak.com/feedback/): Thank you for your feedback! Contact our QC experts at 888.882.5522 for quality control products and consultation. Located in Valencia, CA. - [Xylazine Custom Quality Controls - Utak](https://utak.com/xylazine-custom-quality-controls/): UTAK offers fully customizable Xylazine Quality Controls with our Drugs of Abuse Custom Quality Control Program. - [Resources - Utak](https://utak.com/resources/): Get expert help finding the right quality control products. Book a consultation with our QC specialists or contact us at 888.882.5522 in Valencia, CA. - [A Look Back at the Top Trends in Clinical Laboratory Testing for 2023 - Utak](https://utak.com/blog/a-look-back-at-the-top-trends-in-clinical-laboratory-testing-for-2023/): Discover the top 7 trends that shaped clinical laboratory testing in 2023, from molecular diagnostics to AI integration and custom quality controls. - [Thanks to all who participated in UTAK's 2018 Control Freak Spirit Photo Contest! - Utak](https://utak.com/blog/2018-lab-week-control-freak-spirit-contest/): See the winners of UTAK's 2018 Control Freak Spirit Photo Contest featuring laboratories who love quality control. Explore our QC solutions today. - [The winner of our Lab Week Photo Contest is... - Utak](https://utak.com/blog/the-winner-of-our-lab-week-photo-contest-is/): InSource Diagnostics wins UTAK's 2019 Lab Week Photo Contest! See the winning Control Freak Spirit entries and learn about our annual celebration. - [From Rapa Nui to Rapamycin: The Inspiring Story of the Man Behind a Life Saving Wonder Drug - Utak](https://utak.com/blog/rapa-nui-to-rapamycin/): Read the story of how Surendra Sehgal discovered Rapamycin and was able to extend his life through his discovery. - [Best Practices in Trace Elements Testing - Utak](https://utak.com/blog/best-practices-in-trace-elements-testing/): Learn best practices for trace elements testing in clinical labs. Minimize analytical interference with proper sample collection, metal-free methods & quality controls. - [How Trace Element Quality Controls Help Ensure Accurate Analysis - Utak](https://utak.com/blog/how-trace-element-quality-controls-help-ensure-accurate-analysis/): Learn how trace element quality controls ensure accurate lab analysis. Expert insights on QA/QC samples, blank samples, and best practices for reliable results. - [How UTAK Celebrated the 47th Annual Lab Week - Utak](https://utak.com/blog/how-utak-celebrated-the-47th-annual-lab-week/): UTAK celebrated the 47th annual Lab Week with some fun games for our Control Freaks and a contest for our customers! - [Unveiling the Biggest Trends in Designer Drug Use and Abuse in 2023 - Utak](https://utak.com/blog/unveiling-the-biggest-trends-in-designer-drug-use-and-abuse-in-2023/): Discover the biggest trends in designer drug use and abuse in 2023, from synthetic opioids to dark web marketplaces. Expert insights on prevention strategies. - [Midwest Association for Toxicology and Therapeutic Drug Monitoring (MATT) - Utak](https://utak.com/blog/midwest-association-for-toxicology-and-therapeutic-drug-monitoring-matt/): UTAK Controls Freaks sponsors Midwest Association for Toxicology and Therapeutic Drug Monitoring (MATT) conference April 12-13, 2018. - [Could A Fentanyl Vaccine Save People From Overdoses? - Utak](https://utak.com/blog/could-a-fentanyl-vaccine-save-people-from-overdoses/): University of Houston researchers develop promising fentanyl vaccine that could prevent overdoses by blocking the drug's effects on the brain and reducing relapse rates. - [Understanding DOT's Updated Drug Testing Regulations - Utak](https://utak.com/blog/understanding-dots-updated-drug-testing-regulations/): The Department of Transportation released a final ruling to include the use of Oral Fluid Specimen Testing for Drugs in the Transportation workplace - [Thank You - Utak](https://utak.com/thank-you/): Thank you for your UTAK quality control product request. Our Control Freak team will follow up to confirm your QC consultation and product needs. - [How to Choose Between Real Human and Synthetic Matrices](https://utak.com/blog/exploring-the-distinctions-between-real-human-matrices-and-synthetic-matrices-in-laboratory-quality-control/): The choice between real human matrices and synthetic matrices depends on your testing goals, the availability samples, and the level of control required. - [James Lovelock, the Electron Capture Detector and Gas Chromatography - Utak](https://utak.com/blog/james-lovelock-the-electron-capture-detector-and-gas-chromatography/): Learn about James Lovelock's invention of the Electron Capture Detector and its impact on gas chromatography. UTAK explores the science behind GC-MS testing. - [Nicotine Custom Quality Controls | UTAK](https://utak.com/nicotine-custom-quality-controls/): UTAK offers fully customizable Nicotine Quality Controls with our Drugs of Abuse Custom Quality Control Program. - [Ensuring Lifesaving Precision: The Importance of Immunossuppressants Quality Controls - Utak](https://utak.com/blog/ensuring-lifesaving-precision-the-importance-of-immunossuppressants-quality-controls/): Learn why immunosuppressant quality controls are critical for patient safety, preventing organ rejection, and ensuring accurate lab results in medical testing. - [Clonazepam Archives - Utak](https://utak.com/product-category/analytes/clonazepam/): Clonazepam and its metabolite 7-aminoclonazepam are key targets in seizure management TDM and forensic benzodiazepine panels. Browse QC at UTAK. - [Midazolam Archives - Utak](https://utak.com/product-category/analytes/midazolam/): Midazolam monitoring is essential in ICU sedation, procedural settings, and forensic benzodiazepine investigations. Browse QC options at UTAK. - [Alprazolam Archives - Utak](https://utak.com/product-category/analytes/alprazolam/): Alprazolam appears in toxicology, workplace, and pain management testing. Find benzodiazepine QC and more analyte options at UTAK. - [Amitriptyline Archives - Utak](https://utak.com/product-category/analytes/amitriptyline/): Amitriptyline requires close therapeutic drug monitoring due to its narrow therapeutic window and cardiac toxicity risk. View TCA QC options at UTAK. - [ALP Archives - Utak](https://utak.com/product-category/analytes/alp/): ALP supports liver function panels, hepatobiliary assessment, and metabolic testing in clinical chemistry. Explore QC options for ALP at UTAK. - [MPA Archives - Utak](https://utak.com/product-category/stock/stock-therapeutic-drug-monitoring/stock-therapuetic-drug-monitoring-mpa/): MPA therapeutic drug monitoring quality controls from UTAK. Custom QC solutions in lyophilized serum matrix for mycophenolic acid testing labs. - [Immunosuppressant Archives - Utak](https://utak.com/product-category/stock/stock-therapeutic-drug-monitoring/stock-therapuetic-drug-monitoring-immunosuppressant/): Shop immunosuppressant quality controls for therapeutic drug monitoring. Custom and stock QC products available. Call 888.882.5522 for expert consultation. - [Tricyclic Archives - Utak](https://utak.com/product-category/stock/stock-therapeutic-drug-monitoring/stock-therapuetic-drug-monitoring-tricyclic/): Shop tricyclic antidepressant quality controls for therapeutic drug monitoring. Custom QC solutions and STABBS products available in serum matrix. - [Triazolam Archives - Utak](https://utak.com/product-category/analytes/triazolam/): Triazolam's ultra-short half-life of 1.5 to 5.5 hours makes detection time-sensitive in forensic and DUID investigations. View benzodiazepine QC at UTAK. - [Barbiturates Archives - Utak](https://utak.com/product-category/stock/stock-therapeutic-drug-monitoring/stock-therapuetic-drug-monitoring-barbiturates/): Shop barbiturates quality control panels and therapeutic drug monitoring solutions. Level 1 & 2 panels available. Custom QC options from UTAK Labs. - [Everolimus Archives - Utak](https://utak.com/product-category/analytes/everolimus/): Everolimus monitoring is essential for transplant patient outcomes alongside cyclosporine, sirolimus, and tacrolimus. Browse immunosuppressant QC at UTAK. - [Diazepam Archives - Utak](https://utak.com/product-category/analytes/diazepam/): Diazepam appears in clinical and forensic benzodiazepine panels across urine, blood, and serum for screening and confirmation. Find QC at UTAK. - [STABBS Positive | Normal Human Serum Toxicology Quality Control |](https://utak.com/product/stabbs-positive/): Toxicology Quality Controls for tricyclic antidepressants, barbiturtes, and benzodiazepines. Created with 100% real normal human serum. - [STABBS Negative | Normal Human Serum Toxicology Quality Control |](https://utak.com/product/stabbs-negative/): Toxicology Quality Controls for tricyclic antidepressants, barbiturtes, and benzodiazepines. Created with 100% real normal human serum. - [MPA Level 3 | Mycophenolic Acid Control](https://utak.com/product/mpa-level-3/): The Control Freaks at UTAK offer 100% REAL human matrices. Here are product details & a sample request form for our stock. - [MPA Level 2 | Mycophenolic Acid Control](https://utak.com/product/mpa-level-2/): The Control Freaks at UTAK offer 100% REAL human matrices. Here are product details & sample request form for our stock. - [Immunosuppressants Level 2 | Stock QC for Toxicology](https://utak.com/product/immunosuppressants-level-2/): The Control Freaks at UTAK offer 100% human matrices. Here are product details & sample request form for our stock. - [Immunosuppressants Level 1 | Stock QC for Toxicology](https://utak.com/product/immunosuppressants-level-1/): The Control Freaks at UTAK offer 100% human matrices. Here are product details & sample request form for our stock. - [Immunosuppressants Level 3 | Stock QC for Toxicology](https://utak.com/product/immunosuppressants-level-3/): The Control Freaks at UTAK offer 100% human matrices. Here are product details & sample request form for our stock. - [Pain Management (PM 100) | Stock QC for Toxicology](https://utak.com/product/pain-management-pm-100/): The Control Freaks at UTAK offer 100% human matrices. Here are product details & sample request form for our stock. - [Pain Management Plus High | Urinalysis Toxicology Controls](https://utak.com/product/pain-management-plus-high/): Pain Management quality controls for toxicology labs. Common pain management analytes include common opioids in a 100% real human urine matrix. - [DAU Low Cutoff 2 | Real Human Urine Quality Control for DAU Urinalysis |](https://utak.com/product/dau-low-cutoff-2/): Drugs of Abuse DAU Quality Controls using 100% real human urine. Third party quality control for drugs of abuse testing labs. - [Pain Management 100 | Stock QC for Clinical and Toxicology Labs](https://utak.com/product/pain-management-100/): Human Whole Blood quality control for testing fentanyl, oxycodone, tramadol, methadone, and other common pain medications for toxicology and TDM. - [DAU High Cutoff 1 | Real Human Urine Quality Control for DAU Urinalysis |](https://utak.com/product/dau-high-cutoff-1/): Drugs of Abuse DAU Quality Controls using 100% real human urine. Third party quality control for drugs of abuse testing labs. - [Pain Management Plus Low | Stock QC for Toxicology](https://utak.com/product/pain-management-plus-low/): Pain Management Controls for Urine Toxicology. Therapeutic Drug Monitoring and Drugs of Abuse Quality Controls. - [DAU High Cutoff 2 | Real Human Urine Quality Control for DAU Urinalysis |](https://utak.com/product/dau-high-cutoff-2/): Drugs of Abuse DAU Quality Controls using 100% real human urine. Third party quality control for drugs of abuse testing labs. - [SAMHSA CONFIRM Level 2 - Utak](https://utak.com/product/samhsa-confirm-level-2/): SAMHSA CONFIRM Level 2 synthetic oral fluid control for employment drug testing labs. Contains 32 drug analytes including THC, cocaine, opiates. 5x3mL frozen. - [DAU Low Cutoff 1 | Real Human Urine Quality Control for DAU Urinalysis |](https://utak.com/product/dau-low-cutoff-1/): Drugs of Abuse DAU Quality Controls using 100% real human urine. Third party quality control for drugs of abuse testing labs. - [Drugs of Abuse Level 1 | Stock QC for Toxicology](https://utak.com/product/drugs-of-abuse-level-1/): The Control Freaks at UTAK offer 100% human matrices. Here are product details & sample request form for our stock. - [Urine Drug Screen | Real Human Urine Quality Control for DAU Urinalysis |](https://utak.com/product/urine-drug-screen/): Drugs of Abuse DAU Quality Controls using 100% real human urine. Third party quality control for drugs of abuse testing. - [Miscellaneous Panel Level 2 | Stock QC for Toxicology](https://utak.com/product/miscellaneous-panel-level-2/): The Control Freaks at UTAK offer 100% human matrices. Here are product details & sample request form for our stock. - [Miscellaneous Panel Level 1 | Stock QC for Toxicology](https://utak.com/product/miscellaneous-panel-level-1/): The Control Freaks at UTAK offer 100% human matrices. Here are product details & sample request form for our stock. - [Nortriptyline Archives - Utak](https://utak.com/product-category/analytes/nortriptyline/): Nortriptyline requires TDM due to its narrow therapeutic index as both a prescribed TCA and an active metabolite of amitriptyline. View QC at UTAK. - [UR-144 Archives - Utak](https://utak.com/product-category/analytes/ur-144/): UR-144 is a Schedule I synthetic cannabinoid requiring mass spectrometry confirmation in forensic and workplace panels. Find Spice QC at UTAK. - [Lorazepam Archives - Utak](https://utak.com/product-category/analytes/lorazepam/): Lorazepam glucuronide's poor immunoassay cross-reactivity creates high false-negative rates, requiring LC-MS/MS confirmation. Find QC at UTAK. - [Phencyclidine Archives - Utak](https://utak.com/product-category/analytes/phencyclidine/): Phencyclidine is one of five original SAMHSA-mandated drug classes, remaining a critical target in workplace and forensic panels. Browse QC at UTAK. - [Methadone Archives - Utak](https://utak.com/product-category/analytes/methadone/): Methadone monitoring spans opioid treatment program compliance, chronic pain management, and forensic toxicology investigations. View QC at UTAK. - [Amphetamine Archives - Utak](https://utak.com/product-category/analytes/amphetamine/): SAMHSA and DOT panels mandate amphetamine detection at multiple immunoassay and LC-MS/MS cutoff levels. Browse drugs of abuse QC options at UTAK. - [Phenobarbital Archives - Utak](https://utak.com/product-category/analytes/phenobarbital/): Phenobarbital is one of the oldest antiepileptic drugs still in clinical use, requiring TDM to maintain therapeutic serum concentrations. View QC at UTAK. - [Pentobarbital Archives - Utak](https://utak.com/product-category/analytes/pentobarbital/): Pentobarbital testing spans forensic overdose investigations, veterinary euthanasia toxicology, and clinical sedative-hypnotic assessments. Find QC at UTAK. - [Mephedrone Archives - Utak](https://utak.com/product-category/analytes/mephedrone/): Mephedrone is a synthetic cathinone with MDMA-like properties tested in forensic, postmortem, and emergency toxicology cases. View QC at UTAK. - [Methotrexate Archives - Utak](https://utak.com/product-category/analytes/methotrexate/): Methotrexate TDM guides critical leucovorin rescue timing in oncology and monitors low-dose therapy in rheumatology settings. Explore QC options at UTAK. - [Cobalt Archives - Utak](https://utak.com/product-category/analytes/cobalt/): Cobalt measurement is critical for metal-on-metal hip implant monitoring and occupational exposure in hard metal industries. Find metals QC at UTAK. - [AM2201 Archives - Utak](https://utak.com/product-category/analytes/am2201/): AM2201 and related synthetic cannabinoids evade standard cannabis immunoassays in forensic and workplace testing. Explore Spice QC options at UTAK. - [Secobarbital Archives - Utak](https://utak.com/product-category/analytes/secobarbital/): Secobarbital detection is required in forensic drug panels, clinical toxicology, and medical aid-in-dying cases in certain jurisdictions. Browse QC at UTAK. - [Oxycodone Archives - Utak](https://utak.com/product-category/analytes/oxycodone/): Oxycodone is among the most monitored opioids in pain management compliance, forensic, and workplace drug testing programs. Browse QC at UTAK. - [Creatinine Archives - Utak](https://utak.com/product-category/analytes/creatinine/): Specimen validity testing depends on creatinine alongside specific gravity, pH, and oxidant measurements in urine drug testing programs. Explore QC at UTAK. - [Norcodeine Archives - Utak](https://utak.com/product-category/analytes/norcodeine/): Norcodeine is a minor codeine metabolite critical for distinguishing legitimate codeine use from morphine or heroin administration. Find QC at UTAK. - [Butalbital Archives - Utak](https://utak.com/product-category/analytes/butalbital/): Butalbital is the most frequently encountered barbiturate in clinical toxicology, pain management, and forensic cases. Find barbiturate QC options at UTAK. - [Amobarbital Archives - Utak](https://utak.com/product-category/analytes/amobarbital/): Amobarbital is a Schedule II barbiturate tested across forensic, workplace, and clinical screening panels. Find barbiturate QC options at UTAK. - [Fentanyl Archives - Utak](https://utak.com/product-category/analytes/fentanyl/): Fentanyl is a critical analyte in pain management compliance, forensic toxicology, and SAMHSA confirmation panels. Explore opioid QC options at UTAK. - [Arsenic Archives - Utak](https://utak.com/product-category/analytes/arsenic/): Arsenic testing spans clinical toxicology, occupational health, and environmental exposure monitoring in blood and urine. Find metals QC at UTAK. - [THC Archives - Utak](https://utak.com/product-category/analytes/thc/): THC remains one of five original SAMHSA-mandated drug classes, with testing complexity growing alongside state-level legalization changes. Find QC at UTAK. - [MDPV Archives - Utak](https://utak.com/product-category/analytes/mdpv/): MDPV is a Schedule I synthetic cathinone found in "bath salts" products, requiring mass spectrometry confirmation in forensic casework. Explore QC at UTAK. - [Cyclosporine Archives - Utak](https://utak.com/product-category/analytes/cyclosporine/): Cyclosporine therapeutic drug monitoring guides immunosuppressant dosing for transplant patients alongside tacrolimus and sirolimus. Browse QC at UTAK. - [Benzoylecgonine Archives - Utak](https://utak.com/product-category/analytes/benzoylecgonine/): Benzoylecgonine is the primary urinary metabolite of cocaine tested in SAMHSA, DOT, and forensic panels. Explore drugs of abuse QC options at UTAK. - [JWH-018 Archives - Utak](https://utak.com/product-category/analytes/jwh-018/): JWH-018 is a Schedule I synthetic cannabinoid undetectable by standard cannabis immunoassays, requiring targeted metabolite analysis. Find Spice QC at UTAK. - [Carisoprodol Archives - Utak](https://utak.com/product-category/analytes/carisoprodol/): Carisoprodol, a Schedule IV muscle relaxant, appears in pain management compliance, forensic, and DUI testing panels. 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