Simultaneous gas chromatography/mass spectrometry assay of methadone and 2-ethyl-1,5-dimethyl-3,3-diphenylpyrrolidine (EDDP) in urine.

Abstract

An efficient extraction and gas chromatography/mass spectrometry (GC/MS) procedure has been developed for the simultaneous determination of methadone and 2-ethyl-1,5-dimethyl-3,3-diphenylpyrrolidine in urine samples. The merits of this procedure include (1) effective high-volume sample processing; (2) excellent gas chromatography characteristics; (3) high… (More)

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