摘要
本文报告了氢化物原子吸收法(HG-AAS)、氢化物原子荧光法(HG-AFS)与2,3-二氨基萘分子荧光法(荧光法)的比较研究结果,前二方法的最低检出量分别为0.9ng和1.2ng。测定食物样品准确度和精密度与荧光法接近。本实验测定了六种标准参考物质,测定结果与标准值吻合。
Three methods C2, 3-diaminonaphathalene molecular fluorimetry, hydride generation atomic fluorescence spectrometry (HG-AFS) and hydride generation atomic absorption spectrometry (HG-AAS)] for the determination of selenium in food samples were compared with one another. The absolute detection limits of HG-AFS and HG-AAS are 1.2 and 0.9ng respectively, lower than that of molecular fluorimetry(3.9ng). The precisions and accuracies of HG-AFS and HG-AAS are similar to molecular fluorimetry. When these methods were used to determine selenium in 6 standard reference materials, there was no significant difference among the mean values from each of the methods.
出处
《营养学报》
CAS
CSCD
北大核心
1992年第4期422-425,共4页
Acta Nutrimenta Sinica
基金
国家85攻关课题之一
关键词
硒
原子吸收
光谱法
原子荧光
selenium, HG-AFS, HG-AAS, molecular fluorimetry