原子吸收光谱法测定热激活电池正极粉中钙含量  

Atomic Absorption Spectrometry to Measure the Content of Calcium in Positive Pole Powder of Thermal Activated Batteries

作　　者：薛光荣[1] 

机构地区：[1]中国航天科技集团公司空间电源研究所,上海200233

出　　处：《分析测试技术与仪器》2002年第3期186-188,共3页Analysis and Testing Technology and Instruments

摘　　要：简述了用一氧化二氮 乙炔火焰原子吸收光谱法测定热激活电池正极粉中钙含量 .介绍了钙最佳测定条件以及呈良好线性范围的浓度 .同时对干扰因素进行了综合考虑 .该方法具有很好的灵敏度、干扰小、重现性好、准确度、精确度均能满足航天热激活电池研制工作的要求 .测定样品含钙量相对标准偏差均小于 1.0 % .加标回收率在 97%～ 10 2 %范围 .The application of nitrous oxide-acetylene flame atomic absorbance spectral method to measure the content of calcium in positive powder of thermal activated batteries is studied. The optimum measuring conditions for calcium and potency in which a fine liner range presents, and makes a comprehensive consideration to interference factors was introduced. The method has the advantages of high sensitivity,simple operation, easy master, short analyzing cycle, less interference and good in selectivity and repeatability. The relative standard deviations are all less than 1.0 % in ten sample measures, and the standard adding recovery is in the range of 97 %～102 %. The practice shows that the method is fully suited to measure the cadmium content in positive powder of thermal activated batteries. The proposed method was proved to be a useful instrument analytical technique in nitrous oxide-acetylene flame absorbing spectral method.

关 键 词：测定 钙含量 一氧化二氮-乙炔火焰 原子吸收光谱法 热激活电池 正极粉 材料 

分 类 号：TM91[电气工程—电力电子与电力传动] TM2[一般工业技术—材料科学与工程]