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鸡精和味精中铅、镉含量的测定
引用本文:石敏,郝爱国,朱丽遵.鸡精和味精中铅、镉含量的测定[J].光谱学与光谱分析,2005,25(2):317-318.
作者姓名:石敏  郝爱国  朱丽遵
作者单位:大连医科大学检验医学院,辽宁,大连,116027;大连医科大学附属第二临床医学院,辽宁,大连,116023
摘    要:采用原子吸收法测定了鸡精和味精中污染元素铅、镉的含量。结果表明,不同品牌的鸡精和味精所含铅、镉的量不同。该方法简便、快速、准确、实用。测定的线性范围为铅000~1000μg·mL-1,镉000~400μg·mL-1。铅和镉的精密度试验的相对标准偏差分别为315%和426%,并进行了回收实验,回收率铅在967%~1021%,镉在919%~1076%之间。

关 键 词:鸡精  味精      原子吸收分光光度计
文章编号:1000-0593(2005)02-0317-02
修稿时间:2003年6月11日

Determination of Lead and Cadmium Contents in Chicken Granules and Gourmet Powder
SHI Min,HAO Ai-guo,ZHU Li-zun.Determination of Lead and Cadmium Contents in Chicken Granules and Gourmet Powder[J].Spectroscopy and Spectral Analysis,2005,25(2):317-318.
Authors:SHI Min  HAO Ai-guo  ZHU Li-zun
Institution:College of Laboratory Medicine, Dalian Medicine University, Dalian 116027, China.
Abstract:Through atomic absorption detector, the contents of Pb and Cd in chicken granules and gourmet powder were determined. From the result it was found that there are differing contents of pollutant elements, i. e. 0.00-10.00 microg x mL(-1) for Pb and 0.00-4.00 microg x mL(-1) for Cd, respectively. The relative standard deviations of Pb and Cd are 3.15% and 4.26%, respectively. At the same time, a recovery experiment for Pb and Cd in chicken granules and gourmet powder were performed, and the recoveries are 96.7%-102.1% for Pb and 91.9%-107.6% for Cd, respectively.
Keywords:Chicken granules  Gourmet powder  Lead  Cadmium  AAS
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