用N2O-C2H2原子吸收光谱法测定铜银合金中铁

Determination of Iron Content in Copper-silver Alloy by N2O-C2H2 Flames Atomic Absorption Spectrum

中文关键词:  N₂O-C₂H₂火焰,原子吸收光谱法,铜银合金,铁

英文关键词:nitrous oxide-ethyne flame,atomic absorption spectrum,copper-silver alloy,iron

中文摘要:

      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0.1～30.0 mg/L范围内与吸收值呈良好的线性关系.在测试铁含量为6.26 mg/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.

英文摘要:

      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%.