PMID- 20727526 OWN - NLM STAT- MEDLINE DCOM- 20101202 LR - 20131121 IS - 1873-3778 (Electronic) IS - 0021-9673 (Linking) VI - 1217 IP - 39 DP - 2010 Sep 24 TI - Development and validation of a liquid chromatography tandem mass spectrometry method for the analysis of beta-agonists in animal feed and drinking water. PG - 6061-8 LID - 10.1016/j.chroma.2010.07.034 [doi] AB - A reproducible, sensitive and selective multiresidue analytical method for seven beta-agonists: clenbuterol (CBT), clenpenterol (CPT), ractopamine (RTP), brombuterol (BBT), mabuterol (MBT), mapenterol (MPT), and hydroxymethylclenbuterol (HMCBT) was developed and validated by using liquid chromatography tandem mass spectrometry (LC-MS/MS) in feed and drinking water samples. The validation was achieved according to the criteria laid down in the Commission Decision 2002/657/EC, however it was necessary to use minimum required performance limits (MRPLs) proposed by the Community Reference Laboratories (CRLs) due to the lack of maximum residue limits (MRLs) for beta-agonists. By setting up these MRPLs, allows controlling their use in safe mode, since beta-agonists are commonly used in veterinary medicine sometime in a fraudulent manner, for increasing the weigh of animals. Values set for both matrices studied are 50 microg/kg for animal feed, and a range from 0.2 to 10 microg/L for drinking water. CCalpha values calculated were under the MRPLs suggested; for drinking water the lowest value obtained was 0.12 microg/L, and for animal feed 0.87 microg/kg. Values for CCbeta were ranged from 0.08 to 0.13 microg/L in drinking water and from 0.5 to 0.92 microg/kg in animal feed samples. The excellence values obtained, allowed us to conclude that the proposed analytical method is capable to control the beta-agonists studied in both matrices and that it can be successfully applied and used as a routine method in laboratories of residue analysis of veterinary food control. CI - Copyright 2010 Elsevier B.V. All rights reserved. FAU - Juan, C AU - Juan C AD - Centro Superior de Investigacion en Salud Publica, Unidad de Residuos de Medicamentos Veterinarios, Laboratorio de Salud Publica de Valencia, Generalitat Valenciana, Av. de Cataluna n degrees 21, 46020 Valencia, Spain. juan_cri@gva.es FAU - Igualada, C AU - Igualada C FAU - Moragues, F AU - Moragues F FAU - Leon, N AU - Leon N FAU - Manes, J AU - Manes J LA - eng PT - Journal Article DEP - 20100805 PL - Netherlands TA - J Chromatogr A JT - Journal of chromatography. A JID - 9318488 RN - 0 (Adrenergic beta-Agonists) RN - 0 (Ethanolamines) RN - 0 (Phenethylamines) RN - 059QF0KO0R (Water) RN - 57370OZ3P1 (ractopamine) SB - IM MH - Adrenergic beta-Agonists/*analysis MH - Animal Feed/*analysis MH - Chromatography, Liquid/*methods MH - Ethanolamines/analysis MH - Linear Models MH - Phenethylamines/analysis MH - Reproducibility of Results MH - Sensitivity and Specificity MH - Tandem Mass Spectrometry/*methods MH - Water/chemistry MH - Water Supply/*analysis EDAT- 2010/08/24 06:00 MHDA- 2010/12/14 06:00 CRDT- 2010/08/24 06:00 PHST- 2010/04/08 00:00 [received] PHST- 2010/06/18 00:00 [revised] PHST- 2010/07/13 00:00 [accepted] PHST- 2010/08/24 06:00 [entrez] PHST- 2010/08/24 06:00 [pubmed] PHST- 2010/12/14 06:00 [medline] AID - S0021-9673(10)00954-4 [pii] AID - 10.1016/j.chroma.2010.07.034 [doi] PST - ppublish SO - J Chromatogr A. 2010 Sep 24;1217(39):6061-8. doi: 10.1016/j.chroma.2010.07.034. Epub 2010 Aug 5.