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农业农村部渔业环境及水产品质量检验测试中心(广州),中国水产科学研究院南海水产研究所, 广东 广州 510300
王 强,硕士,高级工程师,研究方向:水产品质量与安全,E-mail:wangqiang@scsfri.ac.cn
收稿日期:2024-10-12,
修回日期:2024-11-19,
录用日期:2024-11-26,
纸质出版日期:2025-05-15
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李惠青,王旭峰,侯超苹,黄珂,王强.固相萃取/超高效液相色谱-串联质谱法测定水产养殖环境中甲苯咪唑及其代谢物[J].分析测试学报,2025,44(05):892-898.
LI Hui-qing,WANG Xu-feng,HOU Chao-ping,HUANG Ke,WANG Qiang.Determination of Mebendazole and Its Metabolites in Aquaculture Environments by Solid Phase Extraction and Ultra-performance Liquid Chromatography-Tandem Mass Spectrometry[J].Journal of Instrumental Analysis,2025,44(05):892-898.
李惠青,王旭峰,侯超苹,黄珂,王强.固相萃取/超高效液相色谱-串联质谱法测定水产养殖环境中甲苯咪唑及其代谢物[J].分析测试学报,2025,44(05):892-898. DOI: 10.12452/j.fxcsxb.241012458.
LI Hui-qing,WANG Xu-feng,HOU Chao-ping,HUANG Ke,WANG Qiang.Determination of Mebendazole and Its Metabolites in Aquaculture Environments by Solid Phase Extraction and Ultra-performance Liquid Chromatography-Tandem Mass Spectrometry[J].Journal of Instrumental Analysis,2025,44(05):892-898. DOI: 10.12452/j.fxcsxb.241012458.
建立了超高效液相色谱-串联质谱(UPLC-MS/MS)同时测定水产养殖环境中甲苯咪唑及其2种代谢物(氨基甲苯咪唑和羟基甲苯咪唑)的分析方法。养殖水体和沉积物样品分别经乙酸乙酯提取后,采用混合型阳离子交换(MCX)固相萃取柱净化。目标物通过Phenomenex Kinetex C
18
(100 mm×2.1 mm,2.6 μm)色谱柱分离,以0.1%甲酸水溶液和乙腈为流动相进行梯度洗脱,在正离子多反应监测模式下进行分析,内标法定量。结果表明,3种药物在0.2~20 μg/L质量浓度范围内线性关系良好,相关系数(
r
2
)均大于0.998。水体和沉积物中平均加标回收率为85.6%~105%,相对标准偏差(RSD,
n
=6)为3.4%~9.3%,检出限分别为1.0~2.0 ng/L和0.05~0.1 μg/kg,定量下限分别为2.0~5.0 ng/L和0.1~0.2 μg/kg。该方法灵敏度高,重复性好,可用于养殖环境中甲苯咪唑及其代谢物的同时测定。
In this study,an ultra-performance liquid chromatography-tandem mass spectrometry (UPLC-MS/MS) method was developed for the simultaneous determination of mebendazole and its two metabolites(amino-mebendazole and 5-hydroxymebendazole) in aquaculture water and sediment samples. The samples were extracted with ethyl acetate,and then purified with mixed-mode cation exchange(MCX) solid-phase extraction column. The targeted analytes were seperated on a Phenomenex Kinetex C
18
(100 mm×2.1 mm,2.6 μm) utilizing gradient elution using 0.1% formic acid solution and acetonitrile as the mobile phases. Mebendazole and its metabolites were determined with positive electrospray ionization under multiple reaction
monitoring mode,and quantified by internal standard method. The method showed good linearity in the range of 0.2-20 μg/L with correlation coefficients(
r
2
) all above 0.998. The average recoveries in aquaculture water and sediment matrix were 85.6%-105%,with relative standard deviations(RSDs,
n
=6) of 3.4%-9.3%. The limits of detection for aquaculture water and sediment samples were 1.0-2.0 ng/L and 0.05-0.1 μg/kg,while the limits of quantitation were 2.0-5.0 ng/L and 0.1-0.2 μg/kg,respectively. The proposed method is sensitive and reliable,which can be applied to the determination of mebendazole and its metabolites in real aquaculture environment samples.
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