氢化物发生-原子荧光光谱法测定蓝布正的硒含量

Determination of Selenium Content in Aleppo Avens by Hydride Generation Atomic Fluorescence Spectrometry

旨在探讨硒在蓝布中的分布特征,并为民族医学的开发和临床应用提供参考.采用氢化物发生—原子荧光光谱法对蓝布正的根和叶的微量元素硒进行测定,确定了硒含量测定的最佳方法和仪器的参数.本法的相关系数r=1.000 0,方法检出限为1.45ng/g,回收率为98.9%～101%,RSD=0.73%(n=9),方法操作简单、准确度高、重现性好、线性范围宽的优点.

This article was aimed at exploring the distribution characteristics of selenium in A- leppo avens,which will provide significant reference for the exploitation and clinical application of national medical. Selenium content in leaves and root of Aleppo avens was determined by hy- dride generation atomic fluorescence spectrometry. The best method and equipment parameters were established. Interrelation c detection limit was 1.4 ng/g, an the line method had the advantages ar range. oofficient of this metho d the recovery rate was of simple operation, h d was r= 1. 000 0, determination of the 98.9%-101%, RSD=0.73%（n=9）, igh accuracy, good repeatability, wide