Low Range Validity Check
Product #18010
This product is no longer in production.
Although we no longer maintain a ready-to-order stock of this control, we offer Low Range Validity Check on a made-to-order basis through our Personalized QC program.
Analyte | Gravimetrically Weighted Value | Units | Stability (Days) |
---|---|---|---|
Creatinine | <5 | mg/dL | 30 days |
Specific Gravity | ≤1.001 | 30 days | |
Nitrites | Negative | µg/mL | 30 days |
pH | 6 - 7 | 30 days |
Product Contains: Creatinine, Specific Gravity, Nitrites, pH
Matrix | Urine |
Unit Size | 5x5mL |
Form | Liquid |
Shelf Life | 36 months |
Stability | 30 days |
Storage | Store liquid control material at 2-8ºC (35-46ºF). |
A validity check is utilized in drugs of abuse (DOA) screening to confirm that the specimen under analysis has not been adulterated by the addition of external substances such as heavy metals, nitrites, oxidants, water, etc. which can interfere with the accuracy of DOA (especially immunoassay) methods. Adulteration can also be confirmed by checking urine pH, specific gravity, creatinine, and heavy metals.