| 多壁碳纳米管分散固相萃取-液质联用技术测定 茶叶中草甘膦、草铵膦、氨甲基膦酸残留量 |
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| 引用本文： | 冯月超,马立利,贾丽,张春梅,刘艳,范筱京,潘灿平.多壁碳纳米管分散固相萃取-液质联用技术测定 茶叶中草甘膦、草铵膦、氨甲基膦酸残留量[J].食品安全质量检测技术,2014,5(4):1147-1154. |
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| 作者姓名： | 冯月超 马立利 贾丽 张春梅 刘艳 范筱京 潘灿平 |
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| 作者单位： | 北京市理化分析测试中心,北京市理化分析测试中心,北京市理化分析测试中心,北京市理化分析测试中心,北京市理化分析测试中心,北京市理化分析测试中心,中国农业大学理学院 |
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| 基金项目： | 北京市财政资金项目支持,编号：PXM2013_178305_000004 |
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| 摘 要： | 摘 要：目的 建立茶叶中草甘膦、草铵膦和氨甲基膦酸残留量的超高效液相色谱串联质谱分析方法。方法 样品经水提取后采用分散固相萃取技术，以多壁碳纳米管（MWCNTS）和N-丙基乙二胺键合固相吸附剂（PSA）吸附提取液中的杂质，上清液用9-芴基氯甲酸酯（FMOC-Cl）衍生。衍生物用BEH C18进行分离，以乙腈-4 mmol乙酸铵水溶液为流动相，电喷雾正离子模式电离（ESI ），多反应监测模式检测（MRM），外标法定量。结果 方法的线性范围是0.1?1 μg/mL，相关系数大于0.999，定量限为10 μg/kg，以绿茶为基质，三种物质添加水平分别为0.25、0.50、1.00 mg/kg，回收率范围分别为草甘膦95%~116%，草铵膦98%~118%，氨甲基膦酸74%~84%，精密度均小于6.79%（n=6）。结论 该方法具有简便快速、灵敏度高、准确性强等特点，适合于测定茶叶中草甘膦、草铵膦和氨甲基膦酸的含量。
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| 关 键 词： | 液质联用 草甘膦 草铵膦 氨甲基磷酸 茶叶 多壁碳纳米管 分散固相萃取 |
| 收稿时间： | 2014/2/12 0:00:00 |
| 修稿时间： | 4/3/2014 12:00:00 AM |
Determination of glyphosate, glufosinate and aminomethylphonic acid residues in tea by liquid chromatography-tandem mass spectrometry using multi-walled carbon nanotubes as dispersive solid-phase extraction sorbent |
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| FENG Yue-Chao,MA Li-Li,JIA Li,ZHANG Chun-Mei,LIU Yan,FAN Xiao-Jing and PAN Can-Ping.Determination of glyphosate, glufosinate and aminomethylphonic acid residues in tea by liquid chromatography-tandem mass spectrometry using multi-walled carbon nanotubes as dispersive solid-phase extraction sorbent[J].Food Safety and Quality Detection Technology,2014,5(4):1147-1154. |
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| Authors: | FENG Yue-Chao MA Li-Li JIA Li ZHANG Chun-Mei LIU Yan FAN Xiao-Jing and PAN Can-Ping |
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| Affiliation: | Beijing Engineering Research Center of Food Safety Analysis, Beijing Center for Physical and Chemical Analysis,Beijing Engineering Research Center of Food Safety Analysis, Beijing Center for Physical and Chemical Analysis,Beijing Engineering Research Center of Food Safety Analysis, Beijing Center for Physical and Chemical Analysis,Beijing Engineering Research Center of Food Safety Analysis, Beijing Center for Physical and Chemical Analysis,Beijing Engineering Research Center of Food Safety Analysis, Beijing Center for Physical and Chemical Analysis,Beijing Engineering Research Center of Food Safety Analysis, Beijing Center for Physical and Chemical Analysis and College of Science, China Agricultural Uniwersity |
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| Abstract: | |
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| Keywords: | ultra performance liquid chromatography-tandem mass spectrometry glyphosate glufosinate aminomethylphonic acid tea multi-walled carbon nano-tubes dispersive solid-phase extraction |
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