title: Application of a hybrid ordered mesoporous silica as sorbent for solid-phase multi-residue extraction of veterinary drugs in meat by ultra-high-performance liquid chromatography coupled to ion-trap tandem mass spectrometry.
abstract: A quick, sensitive and selective analytical reversed-phase multi-residue method using ultra-high performance liquid chromatography coupled to an ion-trap mass spectrometry detector (UHPLC-IT-MS/MS) operating in both positive and negative ion mode was developed for the simultaneous determination of 23 veterinary drug residues (β-blockers, β-agonists and Non-Steroidal Anti-inflammatory Drugs (NSAIDs)) in meat samples. The sample treatment involved a liquid-solid extraction followed by a solid-phase extraction (SPE) procedure. SBA-15 type mesoporous silica was synthetized and modified with octadecylsilane, and the resulting hybrid material (denoted as SBA-15-C18) was applied and evaluated as SPE sorbent in the purification of samples. The materials were comprehensively characterized, and they showed a high surface area, high pore volume and a homogeneous distribution of the pores. Chromatographic conditions and extraction procedure were optimized, and the method was validated according to the Commission Decision 2002/657/EC. The method detection limits (MDLs) and the method quantification limits (MQLs) were determined for all the analytes in meat samples and found to range between 0.01-18.75μg/kg and 0.02-62.50μg/kg, respectively. Recoveries for 15 of the target analytes ranged from 71 to 98%. In addition, for comparative purpose SBA-15-C18 was evaluated towards commercial C18 amorphous silica. Results revealed that SBA-15-C18 was clearly more successful in the multi-residue extraction of the 23 mentioned analytes with higher recovery values. The method was successfully tested to analyze prepacked preparations of mince bovine meat. Traces of propranolol, ketoprofen and diclofenac were detected in some samples.
authors.affiliation: Departamento de Tecnología Química y Energética, Tecnología Química y Ambiental, Tecnología Mecánica y Química Analítica, E.S.C.E.T, Universidad Rey Juan Carlos, C/Tulipán s/n, Móstoles, Madrid 28933, Spain.
authors.forename: Natalia
authors.initials: N
authors.lastname: Casado
authors.affiliation: Departamento de Tecnología Química y Energética, Tecnología Química y Ambiental, Tecnología Mecánica y Química Analítica, E.S.C.E.T, Universidad Rey Juan Carlos, C/Tulipán s/n, Móstoles, Madrid 28933, Spain.
authors.forename: Sonia
authors.initials: S
authors.lastname: Morante-Zarcero
authors.affiliation: Departamento de Tecnología Química y Energética, Tecnología Química y Ambiental, Tecnología Mecánica y Química Analítica, E.S.C.E.T, Universidad Rey Juan Carlos, C/Tulipán s/n, Móstoles, Madrid 28933, Spain.
authors.forename: Damián
authors.initials: D
authors.lastname: Pérez-Quintanilla
authors.affiliation: Departamento de Tecnología Química y Energética, Tecnología Química y Ambiental, Tecnología Mecánica y Química Analítica, E.S.C.E.T, Universidad Rey Juan Carlos, C/Tulipán s/n, Móstoles, Madrid 28933, Spain. Electronic address: isabel.sierra@urjc.es.
authors.forename: Isabel
authors.initials: I
authors.lastname: Sierra
mesh_terms: D000818:Animals; D000894:Anti-Inflammatory Agents, Non-Steroidal / Q000032:analysis / Q000302:isolation & purification; D002417:Cattle; D002851:Chromatography, High Pressure Liquid; D004350:Drug Residues / Q000032:analysis / Q000302:isolation & purification; D008401:Gas Chromatography-Mass Spectrometry; D057230:Limit of Detection; D008460:Meat / Q000032:analysis*; D016062:Porosity; D012822:Silicon Dioxide / Q000737:chemistry*; D052616:Solid Phase Extraction; D053719:Tandem Mass Spectrometry; D019155:Veterinary Drugs / Q000032:analysis* / Q000302:isolation & purification
chemical_list: D000894:Anti-Inflammatory Agents, Non-Steroidal; C509969:SBA-15; D019155:Veterinary Drugs; D012822:Silicon Dioxide
keywords: Meat; Multi-residue method; SBA-15 hybrid mesoporous silica; Solid-phase extraction; Ultra-high performance liquid chromatography; Veterinary drugs