Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
10550967 | Journal of Chromatography B | 2011 | 6 Pages |
Abstract
A rapid, sensitive, and environmental-friendly method has been developed for the simultaneous determination of seven neonicotinoid insecticides residues in bovine muscle and liver. The sample preparation procedure was based on a high automated pressurized solvent extraction (PSE) combined with solid-phase extraction (SPE) clean-up. The target compounds were identified and quantitatively determined by liquid chromatography coupled with electrospray ionization tandem mass spectrometry (LC-ESI-MS/MS) operated in multiple reaction monitoring mode. Average recoveries of the seven analytes from fortified samples ranged between 83.2% and 101.9%, with relative standard deviations (RSDs) lower than 10.8%. The limits of detection (LODs) and quantification (LOQs) for neonicotinoids were in the ranges of 0.8-1.5 μg kgâ1 and 2.5-5.0 μg kgâ1, respectively. This validated method was successively applied to the determination of neonicotinoid insecticides in real samples from markets.
Related Topics
Physical Sciences and Engineering
Chemistry
Analytical Chemistry
Authors
Zhiming Xiao, Xiaowei Li, Xiaolin Wang, Jianzhong Shen, Shuangyang Ding,