Journal
JOURNAL OF CHROMATOGRAPHY A
Volume 1173, Issue 1-2, Pages 98-109Publisher
ELSEVIER
DOI: 10.1016/j.chroma.2007.10.013
Keywords
grape; pesticide residues; multi-residue analysis; LC-MS/MS; method validation; recovery profiles; measurement uncertainty
Ask authors/readers for more resources
A method was validated for the multi-residue analysis of 82 pesticides in grapes at <= 25 ng/g level. Berry samples (10 g) mixed with sodium sulphate (10 g) were extracted with ethyl acetate (10 mL); cleaned by dispersive solid phase extraction and the results were obtained by liquid chromatography-tandem mass spectrometry. Reduction in sample size and proportion of ethyl acetate for extraction did not affect accuracy or precision of analysis when compared to the reported methods and was also statistically similar to the QuEChERS technique. The method was rugged (HorRat < 0.5) with <20% measurement uncertainties. Limit of quantification was <10 ng/g with recoveries 70-120% for most pesticides. The method offers cheaper and safer alternative to typical multi-residue analysis methods for grape. (c) 2007 Elsevier B.V. All rights reserved.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available