(Received 3 July 1995; accepted 15 November 1995)
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Specimens that tested positive for amphetamines by immunoassay were confirmed by mass spectrometry. The absence of detectable d-amphetamine (limit of detection at 50 ng/mL) with a positive methamphetamine prompted further testing by chiral derivatization. This data demonstrates that d-amphetamine need not be present in methamphetamine positive cases.
Director of Toxicology, Saint Louis University Medical School, Department of Pathology, Forensic Toxicology Laboratory, Berkeley, MO
Certified Forensic Toxicology Specialist, Saint Louis University Medical School, Department of Pathology, Forensic Toxicology Laboratory, Berkeley, MO
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