| ICP—MS法测定地沟油中某些微量元素含量 |
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| 引用本文： | 陈清林,刘家琴,何泽,杜代树,何事轩,潘虹.ICP—MS法测定地沟油中某些微量元素含量[J].绵阳师范高等专科学校学报,2012(11):46-48,53. |
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| 作者姓名： | 陈清林 刘家琴 何泽 杜代树 何事轩 潘虹 |
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| 作者单位： | 西华大学物理与化学学院,四川成都610039 |
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| 基金项目： | 西华大学“西华杯”项目、西华大学重点项目（Z0913305） |
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| 摘 要： | 以微波消解法作为样品前处理方法，采用ICP—MS法测定了地沟油中Pb、As、Cd等金属离子的含量。该方法对地沟油中各元素的检出限分别为：Pb0．027μg·L-1，As0．037μg·L-1，Cd0．024μg·L-1，Co0．038μg·L-1，Cu0．039μg·L-1，Cr0．011μg·L-1，Zn0．12μg·L-1，Ni0．069μg·L-1。根据所建立的方法，分析了自制地沟油样品，用加标回收的方法评价了该方法的准确性，回收率在92．1％-108．5％之间，所得结果可为食用油的质量控制提供一定的参考。
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| 关 键 词： | ICP—MS 地沟油 铅 镉 As |
Determination of Some Trace Elements in Hogwash Oil by ICP- MS |
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| CHEN Qing -lin,LIU Jia- qin,HE Ze,DU Dai- shu,HE Shi -xuan,PAN Hong.Determination of Some Trace Elements in Hogwash Oil by ICP- MS[J].Journal of Mianyang Teachers College,2012(11):46-48,53. |
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| Authors: | CHEN Qing -lin LIU Jia- qin HE Ze DU Dai- shu HE Shi -xuan PAN Hong |
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| Institution: | (School of Physics and Chemistry, Xihua University, Chengdu,Sichuan 610039) |
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| Abstract: | Using the microwave digestion as sample pretreatment, the contents of some trace elements such as Pb, As, and Cd in hogwash oil were determined by ICP - MS. The detection limits of these elements were 0. 027μg·L-1 for Pb, 0.037μg·L-1 for As, 0.024μg·L-1 for Cd, 0.038μg·L-1 for Co, 0. 039μg·L-1 for Cu, 0. 011μg·L-1 for Cr, 0. 12μg·L-1 for Zn, and 0. 069μg·L-1 for Ni, respectively. The present method has been applied to determine the contents of above elements in homemade hogwash oil with satisfactory results. The recoveries were 92.1% - 108.5%. This study was valuable for the quality control of edible oil. |
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| Keywords: | ICP- MS hogwash oil lead（Pb） cadmium（Cd） As |
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