PMID- 22284500 OWN - NLM STAT- MEDLINE DCOM- 20120622 LR - 20151119 IS - 1873-3573 (Electronic) IS - 0039-9140 (Linking) VI - 89 DP - 2012 Jan 30 TI - Determination of benzimidazole residues in animal tissue samples by combination of magnetic solid-phase extraction with capillary zone electrophoresis. PG - 335-41 LID - 10.1016/j.talanta.2011.12.038 [doi] AB - Benzimidazole drugs (BZDs) comprise a large number of synthetic anthelmintics, which are widely used in food-producing animals for prophylactic and therapeutic purposes. To protect consumers from the risks related to BZDs residues, a simple, rapid, and efficient method for simultaneous determination of ten BZDs in animal tissues samples was developed. This analytical procedure involved extracting samples with magnetic solid-phase extraction (MSPE) using magnetite/silica/poly (methacrylic acid-co-ethylene glycol dimethacrylate) (Fe(3)O(4)/SiO(2)/poly (MAA-co-EGDMA)) magnetic microspheres, and determination by capillary zone electrophoresis (CZE). To improve the sensitivity of the method, we employed the electrokinetic injection with field-amplified sample stacking technique (FASS). Berbine solution was used as internal standard to minimize the fluctuation of analytical results. Under the optimized extraction conditions, good linearities were obtained for the ten BZDs with the correlation coefficients (R(2)) above 0.9920. The limits of detections (LODs) for ten BZDs were 1.05-10.42 ng/g in swine muscle and 1.06-12.61 ng/g in swine liver, respectively. The intra- and inter-day relative standard deviations (RSDs) of the developed method were less than 13.6%. The recoveries of the ten BZDs for the spiked samples ranged from 81.1% to 105.4% with RSDs less than 9.3%. CI - Copyright (c) 2011 Elsevier B.V. All rights reserved. FAU - Hu, Xi-Zhou AU - Hu XZ AD - Key Laboratory of Analytical Chemistry for Biology and Medicine (Ministry of Education), Department of Chemistry, Wuhan University, Wuhan 430072, China. FAU - Chen, Ming-Luan AU - Chen ML FAU - Gao, Qiang AU - Gao Q FAU - Yu, Qiong-Wei AU - Yu QW FAU - Feng, Yu-Qi AU - Feng YQ LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20111220 PL - Netherlands TA - Talanta JT - Talanta JID - 2984816R RN - 0 (Anthelmintics) RN - 0 (Benzimidazoles) RN - 0 (Berberine Alkaloids) RN - 0 (Ethylene Glycols) RN - 0 (Methacrylates) RN - 728C74FB5Z (berbine) RN - 7631-86-9 (Silicon Dioxide) RN - 7BK5G69305 (ethylene dimethacrylate) SB - IM MH - Animals MH - Anthelmintics/*analysis MH - Benzimidazoles/*analysis MH - Berberine Alkaloids/chemistry MH - Drug Residues/analysis MH - Electrophoresis, Capillary MH - Ethylene Glycols/chemistry MH - Flow Injection Analysis MH - Limit of Detection MH - Liver/*chemistry MH - Magnetics MH - Meat/*analysis MH - Methacrylates/chemistry MH - Muscles/*chemistry MH - Silicon Dioxide/chemistry MH - Solid Phase Extraction MH - Swine EDAT- 2012/01/31 06:00 MHDA- 2012/06/23 06:00 CRDT- 2012/01/31 06:00 PHST- 2011/10/02 00:00 [received] PHST- 2011/12/13 00:00 [revised] PHST- 2011/12/14 00:00 [accepted] PHST- 2012/01/31 06:00 [entrez] PHST- 2012/01/31 06:00 [pubmed] PHST- 2012/06/23 06:00 [medline] AID - S0039-9140(11)01106-4 [pii] AID - 10.1016/j.talanta.2011.12.038 [doi] PST - ppublish SO - Talanta. 2012 Jan 30;89:335-41. doi: 10.1016/j.talanta.2011.12.038. Epub 2011 Dec 20.