氢化物发生原子荧光光谱法测定奶粉中的硒  

Determination of selenium in milk powder by wet digestion-atomic fluorescence spectrometry

作　　者：孙琦[1] 张吉芬[1] 郭琴[1] 苏秀娟[1] 

机构地区：[1]山东省威海市疾病预防控制中心,山东威海264200

出　　处：《中国卫生检验杂志》2010年第11期2757-2758,共2页Chinese Journal of Health Laboratory Technology

摘　　要：目的:建立奶粉中硒的氢化物发生原子荧光光谱法的测定。方法:采用湿法消解,选择最佳消解条件、反应体系条件、仪器条件用原子荧光光谱法进行硒的测定。结果:硒含量在0～10μg/L内呈现良好的线形关系,相关系数0.9999,最低检出限为0.015μg/L,奶粉标准物质(Se的参考值0.170±0.03μg/g)的测定值为0.173μg/g。结论:用该方法测定奶粉中硒的含量,方法的线性关系、精密度、准确度及加标回收均得到满意结果,适合推广应用。Objective：To establish a method for determination of selenium in milk powder by wet digestion-atomic fluorescence spectrometry.Methods： Samples were digested with wet digestion and determined for the concentration of selenium by atomic fluorescence spectrometry in the best digested condition and reaction system condition and instrument condition.Results： The calibration curve for lead was 0 μg/L～10 μg/L,correlation coefficient 0.9999,detection limit 0.015 μg/L.The measured value of milk powder about standard reference materials（Se reference values of 0.170±0.03 μg/g） was 0.173 μg/g.Conclusion： The method for detection of selenium is satisfied.The accuracy of the test results has been greatly improved.

关 键 词：硒 氢化物发生原子荧光光谱法 奶粉 

分 类 号：O657.31[理学—分析化学]