| 液相色谱-串联质谱法测定食品中甲基磺草酮 |
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| 引用本文： | 李爱军,齐犇,李凤兰,牟峻,王明泰,张代辉,符蓉.液相色谱-串联质谱法测定食品中甲基磺草酮[J].理化检验(化学分册),2011(5). |
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| 作者姓名： | 李爱军 齐犇 李凤兰 牟峻 王明泰 张代辉 符蓉 |
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| 作者单位： | 吉林出入境检验检疫局;吉林大学;河北省产品质量监督检验院; |
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| 基金项目： | 国家质检总局行业标准项目(2009B160) |
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| 摘 要： | 食品用乙腈-水(3+1)溶液进行提取,经凝胶色谱、固相萃取柱净化后,用液相色谱-串联质谱法进行测定和确证,外标法定量。色谱分离用甲醇和甲酸-水(0.1+99.9)溶液以不同体积比混合为流动相梯度洗脱,采用负离子模式电喷雾离子源在多反应监测模式下进行检测。甲基磺草酮的质量浓度在0.01~0.2 mg·L-1范围内与其峰面积呈线性关系。以4种食品样品为基体,加入3种浓度水平的甲基磺草酮标准做回收试验,测得回收率在73.2%~100.6%之间;测定值的相对标准偏差(n=10)在4.1%~11%之间。
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| 关 键 词： | 液相色谱-串联质谱 食品 甲基磺草酮 检测 |
LC-MS/MS Determination of Mesotrione in Foodstuffs |
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| LI Ai-jun,QI Ben,LI Feng-lan,MU Jun,WANG Ming-tai,ZHANG Dai-hui,FU Rong.LC-MS/MS Determination of Mesotrione in Foodstuffs[J].Physical Testing and Chemical Analysis Part B:Chemical Analgsis,2011(5). |
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| Authors: | LI Ai-jun QI Ben LI Feng-lan MU Jun WANG Ming-tai ZHANG Dai-hui FU Rong |
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| Affiliation: | LI Ai-jun1,QI Ben2,LI Feng-lan3,MU Jun1,WANG Ming-tai1,ZHANG Dai-hui1,FU Rong2(1.Jilin Entry-Exit Inspection and Quarantine Bureau,Changchun 130062,China,2.Jilin University,3.Hebei Provincial Institute for Supervision and Inspection of Product Quality,Shijiazhuang 050004,China) |
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| Abstract: | Foodstuff sample was extracted with acetonitrile-water(1+1) solution,and the extract obtained was purified by passing through gel permeation chromatographic(GPC) and solid phase extraction(SPE) columns.The eluate obtained was determined and identified by LC-MS/MS with external standard method for quantification.Mixtures of acetonitrile and HCOOH-H2O(0.1+99.9) solutions of various ratios were used as mobile phase in gradient elution and electrospray ionization source with negative ionization mode as well as ... |
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| Keywords: | LC-MS/MS Foodstuff Mesotrione Determination |
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