1.天津农学院 园艺园林学院,天津 300392
2.中国热带农业科学院分析测试中心 农业农村部亚热带果品蔬菜质量安全控制重点实验室 海南省热带果蔬产品质量安全重点实验室,海南 海口 571101
3.中国农业科学院茶叶研究所,浙江 杭州 310008
4.海南省食品检验检测中心 国家市场监管重点实验室(热带果蔬质量与安全),海南 海口 570311
张新忠,博士,研究员,研究方向:茶叶质量安全农药残留研究,E-mail:zxz.1982@163.com
韩丙军,博士,研究员,研究方向:热带农产品质量安全研究,E-mail:hanbjun@163.com
纸质出版日期:2024-02-15,
收稿日期:2023-08-13,
修回日期:2023-11-21,
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蒋舒帆,何燕,李备等.UPLC-MS/MS法测定22种农产品中杀螺胺乙醇胺盐残留[J].分析测试学报,2024,43(02):278-284.
JIANG Shu-fan,HE Yan,LI Bei,et al.Determination of Niclosamide-olamine Residue in 22 Kinds of Agricultural Products by UPLC-MS/MS[J].Journal of Instrumental Analysis,2024,43(02):278-284.
蒋舒帆,何燕,李备等.UPLC-MS/MS法测定22种农产品中杀螺胺乙醇胺盐残留[J].分析测试学报,2024,43(02):278-284. DOI: 10.12452/j.fxcsxb.23081303.
JIANG Shu-fan,HE Yan,LI Bei,et al.Determination of Niclosamide-olamine Residue in 22 Kinds of Agricultural Products by UPLC-MS/MS[J].Journal of Instrumental Analysis,2024,43(02):278-284. DOI: 10.12452/j.fxcsxb.23081303.
建立了超高效液相色谱-串联质谱(UPLC-MS/MS)测定22种农产品中杀螺胺乙醇胺盐残留的分析方法。样品采用改进的QuEChERS方法进行前处理,使用1%甲酸乙腈提取,利用弗罗里硅土进行净化,采用C
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色谱柱进行分离,电喷雾离子源负电离方式和多反应监测模式检测,基质外标法定量。结果表明,22种农产品基质中杀螺胺乙醇胺盐在0.005~0.10 μg/mL范围内均呈现良好的线性关系;在茶叶中的检出限为0.003 mg/kg,定量下限为0.01 mg/kg,在其它基质中的检出限为0.002 mg/kg,定量下限均为0.005 mg/kg。在低、中、高3个加标水平下,平均回收率为77.3%~115%,相对标准偏差(RSD)小于10%,符合残留分析方法要求。该方法简单快速,试剂消耗较小,可满足农产品中杀螺胺乙醇胺盐的检测需求。
An ultra-high performance liquid chromatography-tandem mass spectrometry method(UPLC-MS/MS) was established to determine niclosamide-olamine residue in 22 kinds of agricultural products. With acetonitrile containing 1% formic acid as the extraction solvent and florisil as purificant,a modified QuEChERS method was chosen to purify the analytes from the different samples. The target niclosamide-olamine was separated by a C
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UPLC column,then detected by negative electro-spray ionization(ESI-) and multiple reaction monitoring(MRM) mode. Quantification was performed by peak area external standard methods using matrix-matched calibration curves,with good linear relationships in the range of 0.005-0.10 μg/mL. The limit of detection(LOD) and limit of quantitation(LOQ) of niclosamide-olamine were 0.003 mg/kg and 0.01 mg/kg in tea sample,and 0.002 mg/kg and 0.005 mg/kg in other samples. At three spiked levels in different food samples,the average recoveries were between 77.3% and 115% with relative standard deviations(RSDs) lower than 10%. The method is simple and rapid with low usage of reagents. It is suitable for the determination of niclosamide-olamine in a variety of matrices for agricultural products.
UPLC-MS/MSQuEChERS杀螺胺乙醇胺盐残留农产品
UPLC-MS/MSQuEChERSniclosamide-olamineresidueagricultural products
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