摘要
研究与运用空气- 乙炔(AirC2 H2) 火焰原子吸收光谱法测定热电池正极粉(DEB) 中的钾含量。同时介绍了最佳测定条件及呈良好线性范围的浓度,对干扰因素进行了综合考虑。该方法灵敏度高、干扰小、选择性和重现性好。对样品进行10 次测定的结果表明:方法的相对标准偏差均小于1 .0 % ,标准加入回收率在98 % ～102 % 范围内。
This paper studies the measurement of potassium content in DEB powder of hot battery by using the air C 2H 2 flame atom obsorption spectrum, and introduces the optimum measuring condition and disturbing factor. The method has the advantages of high sensitivity, small, disturbance and good selectivity and repeatability. The results from ten measures for samples show that the relative standard offsets in the method are all smaller than 1.0%, and the standard recovery is during 98%～102%, fully suited for the measurement of potassium content in DEB powder of hot battery.
出处
《上海航天》
2000年第1期59-62,共4页
Aerospace Shanghai
