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- Title
Multiresidue method to quantify pesticides in fish muscle by QuEChERS-based extraction and LC-MS/MS.
- Authors
Lazartigues, Angélique; Wiest, Laure; Baudot, Robert; Thomas, Marielle; Feidt, Cyril; Cren-Olivé, Cécile
- Abstract
Pesticide residues in fish muscle are an environmental and a health safety concern which requires analytical methods presenting high sensitivity and low limits of quantification. In this study, adapted QuEChERS method, coupled to liquid chromatography tandem mass spectrometry (Scheduled MRM-5500 QTRAP), was developed to quantify 13 pesticides (azoxystrobin, clomazone, diflufenican, dimethachlor, carbendazim, iprodion, isoproturon, mesosulfuron-methyl, metazachlor, napropamid, quizalofop and thifensulfuron-methyl) in muscle of fish. Quantification limits were below 1 ng g except for clomazone (1.8 ng g) and quizalofop (7.4 ng g). Best recoveries were observed for perch (>80%) and roach (>68%), except for thifensulfuron-methyl. Lower recoveries had been observed for carp (6% to 86%). Relative standard deviation was lower than 28% for intra-day and 29% for inter-day analysis, respectively. This method was successfully tested on three fish species, naturally or orally exposed: roach ( Rutilus rutilus), perch ( Perca fluviatilis) and carp ( Cyprinus carpio). Few levels were observed in fish naturally exposed, but carp and perch orally contaminated showed measurable levels in their muscles.
- Subjects
PESTICIDE residues in food; FISHES; PESTICIDES; ROACH (Fish); EUROPEAN perch; CARP
- Publication
Analytical & Bioanalytical Chemistry, 2011, Vol 400, Issue 7, p2185
- ISSN
1618-2642
- Publication type
Article
- DOI
10.1007/s00216-011-4945-z