氢化物发生-原子荧光光谱法测定牡蛎中的镉  

Determination of Cadmium in Oyster by Hydride Generation Atomic Fluorescence Spectrometry

作　　者：吴育廉[1] 杨捷[1] 吴晓萍[2] 廖艳[1] 

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：《化学分析计量》2013年第2期28-30,共3页Chemical Analysis And Meterage

基　　金：广东省科技厅项目(2010B020313005)

摘　　要：利用HNO3–HClO4混合酸消解样品,采用氢化物发生–原子荧光光谱法测定牡蛎中镉的含量。在优化的仪器工作条件下,镉的质量浓度在0.20～1.50μg/L范围内与荧光强度呈良好的线性关系,线性相关系数为0.9992,检出限为0.10μg/L,测定结果的相对标准偏差为4.48%(n=12),加标回收率为94.3%～106.1%。测定了标准物质贻贝GB 08571中镉的含量,测定结果与标准值一致。该方法可满足牡蛎中微量镉的分析测定。The sample was digested with HNO3-HC104, and cadmium in oyster was determined by hydride generation atomic fluorescence spectroscopy. On optimal conditions, the concentration of Cd had good linear relationship in the range of 0.20-1.50 μg/L, the correlation coefficient was 0.999 2, and the detection limits was 0.10 μg/L. The RSD was 4.48%（n=12）, the recoveries were 94.3%-106.1%. Cadmium content in mussel GB 08571 was determined, the determination resulut was in the range of standard value. The method is suitable for the determination of cadmium in oyster.

关 键 词：氢化物发生 原子荧光光谱法 牡蛎 镉 

分 类 号：O657.3[理学—分析化学]