鸡精和味精中铅、镉含量的测定  

Determination of Lead and Cadmium Contents in Chicken Granules and Gourmet Powder

作　　者：石敏[1] 郝爱国[1] 朱丽遵[2] 

机构地区：[1]大连医科大学检验医学院,辽宁大连116027 [2]大连医科大学附属第二临床医学院,辽宁大连116023

出　　处：《光谱学与光谱分析》2005年第2期317-318,共2页Spectroscopy and Spectral Analysis

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。Through atomic absorption detector, the contents of Ph 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 mug.mL(-1) for Pb and 0.00-4.00 mug.mL(-1) for Cd, respectively. The relative standard deviations of Ph 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 Ph and 91.9%-107.6% for Cd, respectively.

关 键 词：精密度试验 镉含量 味精 原子吸收法 实验 测定 快速 鸡精 实用 

分 类 号：O657.34[理学—分析化学] TS264[理学—化学]