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Kratom (Mitragynine), Screen and Confirmation, Urine
Detect presence of the kratom alkaloid mitragynine, which has both stimulant and opioid effects
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 from preservative tube