PMID- 33873063 OWN - NLM STAT- MEDLINE DCOM- 20210616 LR - 20210616 IS - 1879-1298 (Electronic) IS - 0045-6535 (Linking) VI - 279 DP - 2021 Sep TI - Miniaturized multiresidue method for the analysis of pesticides and persistent organic pollutants in non-target wildlife animal liver tissues using GC-MS/MS. PG - 130434 LID - S0045-6535(21)00904-8 [pii] LID - 10.1016/j.chemosphere.2021.130434 [doi] AB - In order to gain a better insight into pesticide and pollutant exposure of small (non-target) wildlife animals, a QuEChERS sample preparation method was first developed for 5 g liver tissues (e.g. hedgehog samples) and then downscaled for the analysis of 100 mg liver tissues (e.g. bat samples). The optimized (micro) QuEChERS methods used 1% acetic acid in acetonitrile as organic solvent for liquid-liquid extraction (LLE) and salting out was performed with anhydrous magnesium sulfate and sodium acetate (4:1). After a freezing-out step, sample clean-up was carried out with anhydrous magnesium sulfate, PSA, C(18), and GCB (150:25:20:5). Overall, 209 pesticides and persistent organic pollutants (POPs) can be analysed within each sample with gas chromatography coupled to tandem mass spectrometry (GC-MS/MS). Both methods were validated with representative analytes according to the European Commission guideline SANTE/12682/2019. Limits of quantification were between 1 and 20 mug kg(-1), and the methods proved to be linear up to 400 mug kg(-1). Additionally, the analytes delivered satisfactory results regarding recovery and precision. As proof of concept, samples of six hedgehog livers were analysed with both methods to prove the accuracy of the micro QuEChERS method. Additionally, six livers of different bat species were analysed with the downscaled method. The newly developed micro QuEChERS method for multiresidue analysis requires only minute amounts of biomaterial and represents a sophisticated novel technique for determining the exposure of small wildlife animals to different contaminants. CI - Copyright (c) 2021 Elsevier Ltd. All rights reserved. FAU - Schanzer, Sonja AU - Schanzer S AD - Department of Pharmacy - Center for Drug Research, Ludwig-Maximilians University Munich, Butenandtstrasse 5-13, 81377, Munich, Germany. FAU - Kroner, Egbert AU - Kroner E AD - Wildvogel Pflegestation Kirchwald EV, Auf der Bachhell 1, 56729, Kirchwald, Germany. FAU - Wibbelt, Gudrun AU - Wibbelt G AD - Leibniz Institute for Zoo and Wildlife Research, Alfred-Kowalke-Strasse 17, 10315, Berlin, Germany. FAU - Koch, Martin AU - Koch M AD - Department of Biogeography, Trier University, Universitatsring 15, 54296, Trier, Germany. FAU - Kiefer, Andreas AU - Kiefer A AD - Department of Biogeography, Trier University, Universitatsring 15, 54296, Trier, Germany. FAU - Bracher, Franz AU - Bracher F AD - Department of Pharmacy - Center for Drug Research, Ludwig-Maximilians University Munich, Butenandtstrasse 5-13, 81377, Munich, Germany. FAU - Muller, Christoph AU - Muller C AD - Department of Pharmacy - Center for Drug Research, Ludwig-Maximilians University Munich, Butenandtstrasse 5-13, 81377, Munich, Germany. Electronic address: christoph.mueller@cup.uni-muenchen.de. LA - eng PT - Journal Article DEP - 20210408 PL - England TA - Chemosphere JT - Chemosphere JID - 0320657 RN - 0 (Pesticide Residues) RN - 0 (Pesticides) SB - IM MH - Animals MH - Animals, Wild MH - Gas Chromatography-Mass Spectrometry MH - Liver/chemistry MH - Persistent Organic Pollutants MH - *Pesticide Residues/analysis MH - *Pesticides/analysis MH - Solid Phase Extraction MH - Tandem Mass Spectrometry OTO - NOTNLM OT - Miniaturization OT - Multiresidue method OT - Persistent organic pollutants OT - Pesticides OT - QuEChERS EDAT- 2021/04/20 06:00 MHDA- 2021/06/17 06:00 CRDT- 2021/04/19 20:25 PHST- 2021/01/12 00:00 [received] PHST- 2021/03/25 00:00 [revised] PHST- 2021/03/27 00:00 [accepted] PHST- 2021/04/20 06:00 [pubmed] PHST- 2021/06/17 06:00 [medline] PHST- 2021/04/19 20:25 [entrez] AID - S0045-6535(21)00904-8 [pii] AID - 10.1016/j.chemosphere.2021.130434 [doi] PST - ppublish SO - Chemosphere. 2021 Sep;279:130434. doi: 10.1016/j.chemosphere.2021.130434. Epub 2021 Apr 8.