Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
9748561 | Journal of Chromatography A | 2005 | 7 Pages |
Abstract
Organophosphorus pesticides (OPPs) in vegetables were determined by stir bar sorptive extraction (SBSE) and capillary gas chromatography with thermionic specific detection (TSD). Hydroxy-terminated polydimethylsioxane (PDMS) prepared by sol-gel method was used as extraction phase. The effects of extraction temperature, salting out, extraction time on extraction efficiency were studied. The detection limits of OPPs in water were â¤1.2 ng/l. This method was also applied to the analysis of OPPs in vegetable samples and matrix effect was studied. Linear ranges of OPPs in vegetable samples were 0.05-50 ng/g with detection limits â¤0.15 ng/g and the repeatability of the method was less than 20% relative standard deviation.
Keywords
Related Topics
Physical Sciences and Engineering
Chemistry
Analytical Chemistry
Authors
Wenmin Liu, Yuan Hu, Jinghong Zhao, Yuan Xu, Yafeng Guan,