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Determination of β-Agonist Residues in Animal-Derived Food by a Liquid Chromatography-Tandem Mass Spectrometric Method Combined with Molecularly Imprinted Stir Bar Sorptive Extraction

Tang, Jiwang ; Wang, Jianxiu ; Shi, Shuyun ; Hu, Shengqiang ; Yuan, Liejiang Esteves, Valdemar ; Valdemar Esteves

Journal of analytical methods in chemistry, 2018-01, Vol.2018, p.9053561-10 [Periódico revisado por pares]

Egypt: Hindawi

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Título:
Determination of β-Agonist Residues in Animal-Derived Food by a Liquid Chromatography-Tandem Mass Spectrometric Method Combined with Molecularly Imprinted Stir Bar Sorptive Extraction
Autor: Tang, Jiwang ; Wang, Jianxiu ; Shi, Shuyun ; Hu, Shengqiang ; Yuan, Liejiang
Esteves, Valdemar ; Valdemar Esteves
Assuntos: Accuracy ; Chromatography ; Coating ; Correlation coefficients ; Food ; Food safety ; Fourier transforms ; High performance liquid chromatography ; Ions ; Liver ; Mass spectrometry ; Methods ; Molecular chains ; Molecular imprinting ; Polymers ; Pork ; Science ; Scientific imaging ; Spectrometry
É parte de: Journal of analytical methods in chemistry, 2018-01, Vol.2018, p.9053561-10
Notas: ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
content type line 23
Academic Editor: Valdemar Esteves
Descrição: A novel clenbuterol molecularly imprinted polymer (MIP)-coated stir bar was prepared and applied to the determination of six β-agonists in animal-derived food. Characterization and various parameters affecting adsorption and desorption behaviours were investigated. The extraction capacities of clenbuterol, salbutamol, ractopamine, mabuterol, brombuterol, and terbutaline for MIP coating were 3.8, 2.9, 3.1, 3.5, 3.2, and 3.3 times higher, respectively, than those of the NIP coating, respectively. The method of MIP-coated SBSE coupled with HPLC-MS/MS was developed. The recoveries in pork and liver samples were 75.8–97.9% with RSD from 2.6 to 5.3%. Limits of detection (LODs) and limits of quantification (LOQs) were 0.05–0.15 μg/kg and 0.10–0.30 μg/kg, respectively. Good linearities were obtained for six β-agonists with correlation coefficients (R2) higher than 0.994. These results indicated the superiority of the proposed method in the analysis of β-agonists in a complex matrix.
Editor: Egypt: Hindawi
Idioma: Inglês

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Determination of β-Agonist Residues in Animal-Derived Food by a Liquid Chromatography-Tandem Mass Spectrometric Method Combined with Molecularly Imprinted Stir Bar Sorptive Extraction

Tang, Jiwang ; Wang, Jianxiu ; Shi, Shuyun ; Hu, Shengqiang ; Yuan, Liejiang Esteves, Valdemar ; Valdemar Esteves

Egypt: Hindawi

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