火焰原子吸收光谱法测定大豆中的6种微量元素  

Determination of 6 Trace Elements in Soybean by FAAS

作　　者：王彩红[1] 王芳[1] 阴军英[1] 

机构地区：[1]滨州学院化学与化工系

出　　处：《光谱实验室》2012年第5期2885-2888,共4页Chinese Journal of Spectroscopy Laboratory

基　　金：滨州学院博士启动基金(2007Y04);滨州学院实验技术研究项目(BZXYSYXM201002)

摘　　要：用硝酸-高氯酸消解样品,采用火焰原子吸收法测定了大豆中Mg、Mn、Zn、Na、Ca、Fe 6种微量元素的含量。结果表明:在选定的实验条件下,测得大豆中6种元素的含量为Mg>Na>Ca>Fe>Zn>Mn。该方法的相对标准偏差RSD为0.632%—1.623%,平均回收率在91.7%—100.5%之间。The concents of six trace elements in soybean including Mg,Mn,Zn,Na,Ca,Fe were determined by flame atomic absorption spectrometry （FAAS） after digested the samples with HNO3-HC104. The results indicated that the contents order of six elements in soybean was as follows： Mg〉 Na 〉 Ca 〉 Fe 〉 Zn 〉 Mn under the selected experimental conditions. The relative standard deviations of the method were in the range of 0. 632%-1. 623% ,and the average recoveries were between 91.7% and 100. 5%.

关 键 词：火焰原子吸收光谱法 大豆 微量元素 

分 类 号：O657.31[理学—分析化学]