| 液液萃取饮料中甲苯GC/MS测定方法的研究 |
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| 引用本文： | 武宇红,孟哲,廖询,廖一平,刘虎威.液液萃取饮料中甲苯GC/MS测定方法的研究[J].河北农业大学学报,2006,29(5):57-59. |
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| 作者姓名： | 武宇红 孟哲 廖询 廖一平 刘虎威 |
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| 作者单位： | 1. 河北邢台学院,生物化学系,河北,邢台,054001;北京大学,化学与分子工程学院,北京,100871
2. 北京大学,化学与分子工程学院,北京,100871 |
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| 摘 要： | 为建立一种饮料中甲苯精确定性和定量的分析方法,以标准加入法,在EI源下用GC/MS/SIM模式定量分析果汁饮料中甲苯的含量。结果表明,仪器检出限为0.33 pg,样品中甲苯的平均相对标准偏差小于6%,平均回收率为94.2%。利用GC/MS/SIM方法测定果汁饮料中微量的甲苯,具有灵敏、快速、简便等优点,可用于食品安全检测的推广。
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| 关 键 词： | 甲苯 饮料 气相色谱-质谱(GC-MS) 标准加入法 |
| 文章编号： | 1000-1573（2006）05-0057-03 |
| 收稿时间： | 2006-07-11 |
| 修稿时间： | 2006-07-11 |
GC/MS determination of toluene in juices by liquid-liquid extraction |
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| WU Yu-hong,MENG Zhe,LIAO Xun,LIAO Yi-ping,LIU Hu-wei.GC/MS determination of toluene in juices by liquid-liquid extraction[J].Journal of Agricultural University of Hebei,2006,29(5):57-59. |
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| Authors: | WU Yu-hong MENG Zhe LIAO Xun LIAO Yi-ping LIU Hu-wei |
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| Institution: | 1. Department of Biochemistry, Xingtai College, Xingtai 054001, China; 2. College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China |
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| Abstract: | To establish a new method to determine the toluene in the juices,the concentration of toluene was analyzed by gas chromatography_mass spectrometry(GC/MS) in selected ion monitoring(SIM) mode,and using standard adding method.Results indicate that the correlation coefficient of the method was 0.99 and the detection limit of toluene is 0.33 pg.The average recovery rate is 94.2% and the relative standard deviations(RSD) were less than 6%.The method is sensitive and fast and suitable for determination of the toluene in the food. |
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| Keywords: | toluene juices gas chromatography_mass_spectrometry(GC/MS) standard added method |
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