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Simultaneous determination of sulfonamides and metabolites in manure samples by one-step ultrasound/microwave-assisted solid-liquid-solid dispersive extraction and liquid chromatography-mass spectrometry

文献类型： 外文期刊

作者： Wu, Hui-zhen 1 ; Qian, Ming-rong 2 ; Wang, Jian-mei 2 ; Zhang, Hu 2 ; Ma, Jun-wei 3 ; Li, Zu-guang 1 ; Lee, Maw-rong 4 ;

作者机构： 1.Zhejiang Univ Technol, Coll Chem Engn, Hangzhou 310014, Zhejiang, Peoples R China

2.Zhejiang Acad Agr Sci, MOA Key Lab Pesticide Residue Detect, Inst Qual & Standard Agroprod, Hangzhou 310021, Zhejiang, Peoples R China

3.Zhejiang Acad Agr Sci, Environm Resources & Soil Fertilizer Inst, Hangzhou 310021, Zhejiang, Peoples R China

4.Natl Chung Hsing Univ, Dept Chem, Taichung 40227, Taiwan

关键词： Ultrasound/microwave-assisted extraction;Solid-liquid-solid dispersive extraction;Sulfonamides;Manure;Liquid chromatography-mass spectrometry

期刊名称：ANALYTICAL AND BIOANALYTICAL CHEMISTRY （ 影响因子：4.142； 五年影响因子：3.863 ）

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收录情况： SCI

摘要： An in-line matrix cleanup method was used for the simultaneous extraction of 15 sulfonamides and two metabolites from manure samples. The ultrasound/microwave-assisted extraction (UMAE) combined with solid-liquid-solid dispersive extraction (SLSDE) procedure provides a simple sample preparation approach for the processing of manure samples, in which the extraction and cleanup are integrated into one step. Ultrasonic irradiation power, extraction temperature, extraction time, and extraction solvent, which could influence the UMAE efficiency, were investigated. C-18 was used as the adsorbent to reduce the effects of interfering components during the extraction procedure. The extracts were concentrated, and the analytes were analyzed by liquid chromatography-tandem mass spectrometry (LC-MS/MS) without any further cleanup. The isotopically labeled compounds sulfamethoxazole-d (4), sulfamethazine-d (4), sulfamonomethoxine-d (4), and sulfadimethoxine-d (6) were selected as internal standards to minimize the matrix effect in this method. The recoveries of the antibiotics tested ranged from 71 to 118 % at the three spiking levels examined (20, 200, and 500 mu g center dot kg(-1)). The limits of detections were 1.2-3.6 mu g center dot kg(-1) and the limits of quantification were 4.0-12.3 mu g center dot kg(-1) for the sulfonamides and their metabolites. The applicability of the method was demonstrated by analyzing 30 commercial manure samples. The results indicated that UMAE-SLSDE combined with LC-MS/MS is a simple, rapid, and environmentally friendly method for the analysis of sulfonamides and their metabolites in manure, and it could provide the basis for a risk assessment of the antibiotics in agricultural environments.

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