Optimization and validation of simultaneous analyses of ecgonine, cocaine, and seven metabolites in human urine by gas chromatography-mass spectrometry using a one-step solid-phase extraction
2016 ◽
Vol 1464
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pp. 42-49
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1997 ◽
Vol 695
(2)
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pp. 217-226
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2001 ◽
Vol 765
(2)
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pp. 187-197
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1999 ◽
Vol 723
(1-2)
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pp. 203-210
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2012 ◽
Vol 39
(1)
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pp. 125-128
2001 ◽
Vol 759
(1)
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pp. 43-49
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2011 ◽
Vol 99
(1)
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pp. 125-131
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