N_2O-C_2H_2火焰原子吸收光谱法测定膨胀合金中钴  

Measurement of Cobalt in the Expanded Alloy by N_2O-C_2H_2 Flame Atomic Absorption Spectrometer

作　　者：薛光荣 

机构地区：[1]航天科技集团空间电源研究所,上海200233

出　　处：《现代科学仪器》2005年第3期68-70,共3页Modern Scientific Instruments

摘　　要：采用了N2O-C2H2火焰原子吸收光谱法测定膨胀合金中钴。介绍了钴的最佳测定条件,并在样品测定中对干扰因素进行了综合考虑。该方法灵敏度高、干扰小、操作步骤简单、分析周期快等特点。其方法的相对标准偏差均小于1.0%。加标回收率均为97.0%～102.0%范围内,测定结果令人满意。The application of N2O-C2H2 flame atomic absorption spectrometer to measure of Cobalt in The expanded alloy is studied. This paper introduces the optimum measuring conditions for cobalt and potency which a fine liner range presents. And makes a synthetic consideration of interference factors. The method has the advantages of high sensitivity, less interference and good selectivity and reappearance. The relative standard deviations are all less than 1.0% （n=6） in six sample measures. And the standard adding recovery is the range of 97.0% - 102.0% （n=6）. The practice shows that the method is fully suitable to measure the cobalt in the expanded alloy.

关 键 词：N2O-C2H2火焰 原子吸收光谱法 膨胀合金 钴 测定技术 N2O-C2H2火焰原子吸收光谱法 定膨胀合金 相对标准偏差 加标回收率 测定条件 

分 类 号：TG115.335[金属学及工艺—物理冶金]