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- W1967331851 endingPage "61" @default.
- W1967331851 startingPage "43" @default.
- W1967331851 abstract "The simultaneous assay of cocaine, opiates and metabolites in small biological samples continues to be a difficult task. This report focuses upon tabulation of important techniques (extraction, derivatization, chromatographic conditions, detection mode, data acquisition) reported over the last decade that were used in the development of assays for these analytes. The most prevalent procedures for extraction of cocaine, opiates and metabolites were liquid-liquid and solid-phase extraction isolation methods. Following extraction analytes were derivatized and analyzed by gas chromatography-mass spectrometry. The technique most often used for chromatographic separation was fused-silica capillary column gas chromatography. Detection generally was performed by selected ion monitoring in the positive-ion electron-impact ionization mode, although full-scan acquisition and positive- and negative-ion chemical ionization methods have been used. It was apparent from the review that there is a continuing need for greater sensitivity and selectivity in the assay of highly potent opiates and for cocaine and metabolites." @default.
- W1967331851 created "2016-06-24" @default.
- W1967331851 creator A5066790549 @default.
- W1967331851 creator A5089636480 @default.
- W1967331851 date "1992-09-01" @default.
- W1967331851 modified "2023-09-23" @default.
- W1967331851 title "Rapid assay of cocaine, opiates and metabolites by gas chromatography—mass spectrometry" @default.
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