Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
10548179 | Journal of Chromatography A | 2005 | 8 Pages |
Abstract
A gas chromatography-tandem quadrupole mass spectrometry multi-residue method for the analysis of 19 organochlorine pesticides in fats and oils has been developed. Gel permeation chromatography was employed to remove lipid material prior to GC-MS/MS analysis. Average recoveries of the pesticides spiked at 10 and 50 μg kgâ1 into fish oil, pork fat, olive oil and hydrogenated vegetable oil were typically in the range 70-110% with relative standard deviations generally less than 10%. Calculated limits of detection are between 0.1 and 2.0 μg kgâ1 and results obtained for the analysis of proficiency test materials are in good agreement with assigned values. The higher selectivity of the GC-MS/MS compared to electron capture detection and GC-MS in selective ion monitoring mode allowed unambiguous identification and confirmation of all the target pesticides at low μg kgâ1 levels in fats and oils in a single analysis.
Keywords
Related Topics
Physical Sciences and Engineering
Chemistry
Analytical Chemistry
Authors
Katan Patel, Richard J. Fussell, Mike Hetmanski, David M. Goodall, Brendan J. Keely,