| SPE/RRLC-MS法测定水中除草剂苯噻草胺残留量 |
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| 引用本文： | 俞志刚,刘玉勇,李东颖,牛古丹.SPE/RRLC-MS法测定水中除草剂苯噻草胺残留量[J].分析试验室,2009,28(10). |
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| 作者姓名： | 俞志刚 刘玉勇 李东颖 牛古丹 |
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| 作者单位： | 1. 哈尔滨理工大学化学与环境工程学院,哈尔滨,150040
2. 黑龙江省哈尔滨水环境监测分中心,哈尔滨,150010 |
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| 基金项目： | 黑龙江省自然科学基金 |
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| 摘 要： | 建立了SPE/RRLC-MS法定量测定水中除草剂苯噻草胺残留量的方法.固相萃取小柱为SupelcleanTM ENVITM-18 柱(3 mL);采用快速高分离液相色谱系统进行色谱分离;质谱在正离子扫描模式下,选择丰度最高的碎片离子m/z 192为定量离子,m/z 148为定性参比离子,外标法定量.研究结果显示:方法的仪器检出限(LOD)为0.001 mg/L,理论检出限为0.004 μg/L,方法的定量限为0.004 mg/L,线性范围在0.004～0.5 mg/L之间,低、中和高3个浓度点的平均加标回收率为72.1%～97.7%,相对标准偏差(RSD)为3.2%～15%.该方法可用于饮用水和松花江水中苯噻草胺残留量的检测.
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| 关 键 词： | 苯噻草胺 测定 |
Determination of herbicide mefenacet residue in water samples by SPE/RRLC-MS |
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| YU Zhi-gang,LIU Yu-yong,LI Dong-ying,Niu Gu-dan.Determination of herbicide mefenacet residue in water samples by SPE/RRLC-MS[J].Chinese Journal of Analysis Laboratory,2009,28(10). |
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| Authors: | YU Zhi-gang LIU Yu-yong LI Dong-ying Niu Gu-dan |
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| Institution: | 1.School of Chemistry and Envilronmental Engineering;Haibin University of Science and Technology;Harbin 150040;2.Water Enviromental Monitoring Branch Ceneer of Harbin in Heilongjiang Province;Harbin 150010 |
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| Abstract: | A SPE-RRLC-MS method was developed for the determination of herbicide mefenacet residue in water samples quantificationally.The SPE pillaret was supelcleanTM ENVITM-18(3 mL);the rapid resolution LC system was applied chromatographic separation;Mass spectrometry was operated under the positive ion mode.The most abundant fragment ion m/z 192 was confirmed to be the quantitative ion for quantification measured by MRM mode with external standard method,m/z 148 was selected to be the qualitative reference ion.Th... |
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| Keywords: | SPE/RRLC-MS |
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