Analyte | Gravimetrically Weighted Value | Units | Stability (Days) |
---|---|---|---|
Chromium VI | >65 | µg/mL | n/a |
Creatinine | n/a | mg/dL | n/a |
Nitrites | n/a | µg/mL | n/a |
Oxidants | >65 | µg/mL | n/a |
pH | 11.2 - 12.0 | n/a | |
Specific Gravity | n/a | n/a |
Product Contains: Chromium VI, Creatinine, Nitrites, Oxidants, pH, Specific Gravity
Matrix | Adulterant |
Unit Size | 1x25mL |
Form | Liquid |
Shelf Life | 24 months |
Stability | n/a |
Storage | Store liquid control material at 2-8ºC (35-46ºF). |
A validity control, which contains common adulterants, is utilized in drugs of abuse (DOA) testing to confirm a laboratory's DOA analytical systems are performing accurately and can identify adulterated urine specimens. Validity Controls Level 1 through 5 are used as quality control materials to help identify substituted, diluted, and adulterated urine samples.
The matrices for this QC are prepared from distilled water. The levels of the Adulterants, Creatinine, Specific Gravity, and pH are adjusted to the desired range for each lot prepared. Quality control before, during, and after the preparation of the control material ensures that each lot is comparable and of the same high quality. The listed ranges were verified by analytical methods similar to those actually used in a testing laboratory.