原子吸收法与原子荧光法测定马氏珠母贝中镉  

Determination of Cadmium in Pinctada Martensii by Atomic Absorption Spectrometry and Generation-atom Fluorescence Spectrometry

作　　者：吴育廉[1] 杨捷[1] 廖艳[1] 吴晓萍[2] 

机构地区：[1]广东海洋大学生化中心,广东湛江524088 [2]广东海洋大学食品科技学院,广东湛江524088

出　　处：《食品研究与开发》2014年第20期98-101,共4页Food Research and Development

基　　金：广东省科技厅项目(2010B020313005)

摘　　要：利用HNO3-HCl O4混合酸体系消解样品,比较火焰原子吸收光谱法和氢化物发生原子荧光法测定马氏珠母贝微量镉的含量。试验表明,火焰原子吸收光谱法与氢化物发生原子荧光法的检出限分别为6.86μg/L和0.10μg/L,测定镉含量分别为61.65 mg/kg和60.97 mg/kg,测定RSD为2.03%和4.31%(n=6),平均回收率为99.79%和93.47%,测定标准物质GB08571贻贝中镉含量结果亦在标准值范围内。两种方法均可用于马氏珠母贝微量镉含量的分析测定。The sample was digested with HNO3-HCl O4, to compare with flame atomic absorption spectrometry and hydride generation atomic fluorescence spectrometry of determination of cadmium in Pinctada martensii. The experiment Indicate that,the detection limits was 6.86 μg/L,0.10 μg/L,Determination of cadmium content are61.65 mg/kg and 60.97 mg/kg,the determination of RSD was 2.03 %,4.31 %（n=6）,and the recoveries were 99.79 %,93.47 % of AAS and AFS. And determination of cadmium content in standard reference material GB08571 results in a range of standard value. So these two methods can be used in Pinctada martensii trace cadmium determination.

关 键 词：原子吸收法 原子荧光法 马氏珠母贝 镉 

分 类 号：O657.31[理学—分析化学]