期刊
JOURNAL OF CHROMATOGRAPHY A
卷 911, 期 1, 页码 97-105出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/S0021-9673(00)01256-5
关键词
solvent microextraction; cocaine; cocaethylene; ecgonine methyl ester; anhydroecgonine methyl ester
A simple, quick and inexpensive screening method for cocaine and cocaine metabolites has been developed. Drug extraction was achieved using the relatively new technique of solvent microextraction (SME). Complete analysis is achieved in 13 min, using, a 6-min extraction with a 2-mul drop followed by separation on a gas chromatograph. The developed procedure was tested as a screening method for cocaine and cocaine metabolites in spiked urine samples. Using SME, concentrations as low as 0.125 mug ml(-1) of cocaine, ecgonine methyl ester, cocaethylene and anhydroecgonine methyl ester were measurable with relative standard deviation values averaging 9.0%. (C) 2001 Elsevier Science B.V. All rights reserved.
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