氢化物-原子荧光法同时测定大米中的砷和硒  

Simultaneous Determination of As and Se in Rice by HG-AFS

作　　者：邹勇平 束琴霞[2] 周元元 张鹏 

机构地区：[1]扬州市产品质量监督检验所,扬州225000 [2]扬州环境资源职业技术学院,扬州225000

出　　处：《化学分析计量》2012年第2期52-54,共3页Chemical Analysis And Meterage

摘　　要：采用氢化物-原子荧光光谱法测定大米中的砷和硒。在0～10μg/L范围内,砷和硒的浓度与荧光强度呈线性关系,相关系数分别为0.9996和0.9998,加标回收率分别为96.2%～100.8%和98.1%～107.6%,砷、硒测定结果的相对标准偏差分别不大于6.8%,5.7%(n=6)。The method for simultaneous determination of As and Se in rice by HG-AFS was studied, the concentration of As and Se in the range of 0 -10 μ g/L was linear with the fluorescence intensity. The correlation coefficient was 0.999 6 and 0.999 8（n=6）, the recoveries were 96.2 % -100.8 % and 98.1% - 107.6 %, RSD was no more than 6.8% and 5.7%, respectively.

关 键 词：氢化物-原子荧光光谱法 大米 砷 硒 

分 类 号：O657.3[理学—分析化学]