摘要
报道了火焰原子吸收光谱法测定锂辉石中锂含量的方法.此方法重现性好,干扰少,操作简便.用HNO3-HF-H2SO4溶解试样,在0.5%H2SO4介质中于原子吸收分光光度计670.8nm处,用空气-乙炔火焰进行测定.在选定的条件下进行试样分析,其RSD≤2.7%(n=6),回收率为97.2%～102.6%,精密度和准确度均达到了满意的结果.
The method to determine content of lithium in spodumene with flame atomic absorption photometry is reported. It has the features of good repeatability, less disturbance and simple operation. The satisfied result in precision and accuracy can be got for sample analysis, RSD being equal or less than 2.7 percent and rate of recovery being from 97.2 to 102.6 percent, under selected condition: to solve sample with HNO3-HF-H2SO4, determine with air-acetylene flame at 670.8 nm of atomic absorption spectrophotometer in the media of H2SO4 OF 0.5 %.
出处
《河北冶金》
2004年第3期25-26,31,共3页
Hebei Metallurgy
关键词
火焰原子吸收光谱法
锂辉石
锂
flame atomic absorption photometry
spodumene
lithium
