石墨炉原子吸收法测定合金钢中痕量铋  

Determination of Trace Bismuth in Steel by Graphite Furnace Atomic Absorption Spectrometry

作　　者：朱波[1] 李方军[1] 林晓东[1] 张伟[1] 

机构地区：[1]西宁特殊钢股份有限公司,青海西宁810005

出　　处：《甘肃冶金》2013年第6期72-73,共2页Gansu Metallurgy

摘　　要：为了建立合金钢中痕量铋的石墨炉原子吸收法。通过采用硝酸低温加热消解合金钢、钯一硝酸镁溶液作为基体改进剂，研究了石墨炉原子吸收光谱法测定合金钢中痕量铋方法。结果表明本方法对测定合金钢中铋的灵敏度、准确度都有很大的提高，操作简便。对实际样品进行分析，铋的加标回收率为94．5％～106．2％。本方法测定灵敏、准确，可用于合金钢中痕量铋测定。With nitric acid digestion of alloy steel with low temperature heating, palladium and nitrate solution as the base modifier, graphite furnace atomic absorption spectrometry was adopted for the determination of trace bismuth alloy steel ma- trix. The determination of bismuth in alloy steel precision is greatly improved with improved sensitivity and simple opera- tion. For the analysis of real samples, the recover）, rate was 94.5% - 106.2% bismuth.

关 键 词：合金钢 痕量铋 石墨炉原子吸收光谱法 

分 类 号：O657.31[理学—分析化学]