DETERMINATION OF S-TRIAZINE HERBICIDE RESIDUES IN URINE - ANALYTICAL METHOD DEVELOPMENT

被引:12
作者
ERICKSON, MD [1 ]
FRANK, CW [1 ]
MORGAN, DP [1 ]
机构
[1] UNIV IOWA,INST AGR MED,OAKDALE,IA 52319
关键词
D O I
10.1021/jf60224a002
中图分类号
S [农业科学];
学科分类号
09 ;
摘要
Analytical methodology for the separation and characterization of s-triazine herbicide residues in urine was developed. In the sample preparation procedure developed, a urine sample at pH 12 was extracted with hexane three times, using sodium chloride as an emulsion inhibitor. The combined hexane extract was dried by passing it through a sodium sulfate column and concentrated by rotary evaporation. The sample was transferred to a graduated centrifuge tube and further concentrated to 0.5 mL under a stream of dry nitrogen. The sample was analyzed by gas chromatography using the Hall electrolytic conductivity detector (HECD) in the nitrogen-specific mode. The method is advantageous in that it is simple and fast, lending itself to use as a routine method by technical personnel. © 1979, American Chemical Society. All rights reserved.
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页码:740 / 743
页数:4
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