用N_2O-C_2H_2原子吸收光谱法测定铜银合金中铁  

Determination of Iron Content in Copper-silver Alloy by N_2O-C_2H_2 Flames Atomic Absorption Spectrum

作　　者：夏敏勇 梁艺乐[2] 薛光荣[2] 

机构地区：[1]上海安谱科学仪器有限公司分析测试中心,上海200030 [2]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》2008年第3期168-171,共4页Analysis and Testing Technology and Instruments

摘　　要：提出用N2O-C2H2火焰原子吸收光谱法测试镉镍电池材料铜银合金中铁含量．方法具有良好的灵敏度，干扰少，重现性好．铁含量在0．1～30．0mg／L范围内与吸收值呈良好的线性关系．在测试铁含量为6．26mg／L（测定次数n=10）时，其相对标准偏差小于1．0％．标准回收率在97．0%-99．0％（n=6）范围内，适用于镉镍电池材料铜银合金中铁含量的质量控制分析和样品系统分析，结果令人满意．The application of nitrous oxide-ethyne flame atomic absorption spectrum to research of Iron content measurement in copper-silver alloy of cadmium nickel battery is studied. This paper introduces the optimum measuring conditions for Iron content and potency in which a fine liner range presents. The method has the advantages of high sensitivity, less interference and good in selectivity and reappearance. The relative standard deviations are all less than 1.0 %（n=10） in ten sample measures, and the standard recovery is in the range of 97.0 %-99.0%.

关 键 词：N2O-C2H2火焰 原子吸收光谱法 铜银合金 铁 

分 类 号：O657.7[理学—分析化学]