Determination of carbendazim residues in grains by solid-phase extraction and micellar electrokinetic chromatography with ultraviolet detection

被引：14
|
作者：
Wu, YS
Lee, HK
Li, SFY
机构：
[1] NATL UNIV SINGAPORE, DEPT CHEM, SINGAPORE 119260, SINGAPORE
[2] NATL UNIV SINGAPORE, INST MAT RES & ENGN, SINGAPORE 119260, SINGAPORE
来源：
JOURNAL OF CHROMATOGRAPHIC SCIENCE | 1997年 / 35卷 / 11期
关键词：
D O I：
10.1093/chromsci/35.11.513
中图分类号：
Q5 [生物化学];
学科分类号：
071010 ; 081704 ;
摘要：
A new method for the determination of carbendazim residues in grains is described. Samples are extracted with hydrochloric acid, cleaned up by solid-phase extraction, and quantitated by micellar electrokinetic chromatography (MEKC) with on-column ultraviolet detection. Recoveries ranging from 82.6 to 94.6% are obtained for rice and wheat samples spiked with carbendazim at 0.1 and 1.0 mg/kg. The lower detection limits are 0.05 ppm. Measurement of carbendazim via MEKC results in sharp and reproducible peaks that facilitate quantitation. This new approach also shows superiority over currently available methods in terms of procedural simplicity and solvent economy.
引用
收藏
页码：513 / 518
页数：6
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