微波消解-火焰原子吸收光谱法测定地质样品中的银  

Determintion of Silver in Geological Samples by FAAS with Microware Digestion

作　　者：王云玲[1] 孙乃明[1] 陈远茂 

机构地区：[1]中国人民武装警察部队黄金第四支队

出　　处：《光谱实验室》2013年第2期913-915,共3页Chinese Journal of Spectroscopy Laboratory

摘　　要：采用微波消解预处理技术和火焰原子吸收光谱法,测定了地质样品中的银;对盐酸介质的浓度和测定方法进行了讨论和优化;该方法的检出限为1.0μg/g;精密度(RSD,n=11)为1.8%—5.4%;测定范围:(1—5000)μg/g。方法经国家一级标准物质验证,测定结果与标准值相符。Silver in geological samples was determined by FAAS （flame atomic absorption spectrometry） with microwave digestion pretreatment technology. The concentration of the medium to HC1 and determination method were discussed and optimized. The analysis results showed that the detection limit of method was 1.0μg/g,and the RSDs（n= 11） were in the range of 1.8%-5.4%. The range of determination were （1-1000）μg/g. Through determination of country-level standard substance,the determininz results conformed to the standard values.

关 键 词：地质样品 火焰原子吸收光谱法 银 

分 类 号：O657.31[理学—分析化学]