食品中钼含量的石墨炉原子吸收测定方法  

A method for determination of molybdenum content in food GFAAS

作　　者：聂莉[1] 李敏[1] 张晓炜[1] 曲宁[1] 聂颖 马红[3] 

机构地区：[1]辽宁省疾病预防控制中心,沈阳110005 [2]辽宁省抚顺市职业病防治院,辽宁抚顺113015 [3]辽宁省职业病防治院,沈阳110005

出　　处：《中国卫生检验杂志》2009年第4期791-793,共3页Chinese Journal of Health Laboratory Technology

摘　　要：目的：建立食品中钼含量的原子吸收光谱测定方法。方法：将食品样品经干灰化法消解或硝酸消化后,用石墨炉原子吸收直接测定。结果：方法的检出限为3μg/L,精密度为3.8%-6.0%,用国家标准物质杨树叶测定结果回收率干灰化法为94.5%,硝酸消化法为86.9%,曲线的线性范围在0-60μg/L之间。结论：该方法适用于食品中钼含量的测定。Objective：To establish a method for determination of molybdenum content in food GFAAS. Methods：Mter food samples were digested by ashing or by nitric acid, their molybdenum content was determined by GFAAS directly. Results：The detection limit of the method was 3 μg/L, the degree of precision was 3. 8% -6.0%, standard samples aspen leaves had been digested by ashing and by nitric acid, and recovery rates were 94.5% and 86. 9% respectively. The linear range of standard curve was 0- 60μg/L Conclusion ：This method is suitable for determination of molybdenum content in food

关 键 词：食品 钼 石墨炉原子吸收法 

分 类 号：R115[医药卫生—公共卫生与预防医学]