Combination of solid-phase extraction and field-amplified concentration for trace analysis of organonitrogen pesticides by micellar electrokinetic chromatography

被引：26
|
作者：
He, Y [1 ]
Lee, HK [1 ]
机构：
[1] NATL UNIV SINGAPORE,DEPT CHEM,SINGAPORE 119260,SINGAPORE
来源：
ELECTROPHORESIS | 1997年 / 18卷 / 11期
关键词：
solid-phase extraction; field-amplified concentration; micellar electrokinetic chromatography; organonitrogen pesticides;
D O I：
10.1002/elps.1150181126
中图分类号：
Q5 [生物化学];
学科分类号：
071010 ; 081704 ;
摘要：
An analytical method based on the combination of solid-phase extraction (SPE) and field-amplified concentration (FAC), with micellar electrokinetic chromatography (MEKC) was developed to extract, concentrate, separate, and quantitate six organonitrogen pesticides (metribuzin, bromacil, terbacil, hexazinone, triadimefon, and DEET) in drainage water. The recovery of the first five pesticides was over 85%, and the limit of detection was 0.8 ppb. Four advantages (enhanced enrichment and recoveries, reduced extraction time and interferences) of combining SPE with FAC for trace analysis of pesticides at the ppb level were demonstrated.
引用
收藏
页码：2036 / 2041
页数：6
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