摘要
简述运用N2O-C2H2火焰原子吸收光谱法进行镉镍电池电解液中锂含量的测定,并介绍了锂最佳测定条件及呈良好线性范围的浓度。同时对样品的干扰因素、消化处理条件,在综合分析的基础上提出了有效的测定方案。该测定方法灵敏度好,准确度与精密度均能满足镉镍电池研制工作的要求。测定样品锂含量相对标准偏差均小于1.0%(测定次数n=10),标准加入回收率均在97.0%,100.0%(n=6)范围内,达到了实验室分析质量与质量控制的要求,适用于电解液中锂含量的控制分析和样品系统分析。
This paper studied the measurement of lithium content in electrolyte solution of Cadmium nickel battery by using the N2O-C2H2 flame atomic-absorption spectroscopy and process synthetically considering measuring conditions and factors.Tiffs method possesses many advantages such as high sensitivity and accuracy, less interference and good repeatability and selectivity.The deviation RSD〈 1.0% comparing to standard value.The standard adding recovery is in the range of 97.0% ~100.0% .The use of the method fully suited to the control of lithium content in electrolyte solution of Cadmium nickel battery. Analysis for sample system has obtained good effect in practice.
出处
《中国测试技术》
2006年第5期26-28,共3页
CHINA MEASUREMENT & TESTING TECHNOLOGY
关键词
N2O-C2H2火焰
原子吸收光谱法
镉镍电池
电解液
锂
N2O-C2 H2 flume
Atomic absorption spectrometer
Cadmium nickel battery
Electrolyte solution
Lithium