当前位置: 首页 > 文章 > 液液萃取饮料中甲苯GC/MS测定方法的研究 河北农业大学学报 2006,29 (5) 61-63
Position: Home > Articles > GC/MS determination of toluene in juices by liquid-liquid extraction Journal of Agricultural University of Hebei 2006,29 (5) 61-63

液液萃取饮料中甲苯GC/MS测定方法的研究

作  者:
武宇红;孟哲;廖询;廖一平;刘虎威
单  位:
河北邢台学院生物化学系;北京大学化学与分子工程学院
关键词:
甲苯;饮料;气相色谱-质谱(GC-MS);标准加入法
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。
译  名:
GC/MS determination of toluene in juices by liquid-liquid extraction
作  者:
WU Yu-hong~(1,2),MENG Zhe~(1,2),LIAO Xun~2,LIAO Yi-ping~2,LIU Hu-wei~2 (1.Department of Biochemistry,Xingtai College,Xingtai 054001,China;2.College of Chemistry and Molecular Engineering,Peking University,Beijing 100871,China)
关键词:
toluene;juices;gas chromatography_mass_spectrometry(GC/MS);standard added method
摘  要:
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.

相似文章

计量
文章访问数: 6
HTML全文浏览量: 0
PDF下载量: 0

所属期刊

推荐期刊