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Detect the presence of desomorphine (dihydrodesoxymorphine) a highly addictive opioid derivative of codeine.
Initial presumptive testing by liquid chromatography tandem mass spectrometry (LC/MS-MS) at a testing threshold of 1.0 ng/mL; presumptive positives confirmed by definitive liquid chromatography tandem mass spectrometry (LC/MS-MS) at a testing threshold of 1.0 ng/mL
Submission/transport (<3 days): Room temperature. For storage beyond three days, specimen should be refrigerated or frozen.
Causes for Rejection
Urine in preservative tube