用次灵敏线火焰原子吸收分光光度法测定含铜物料中高含量铜

基金项目:

国土资源部地质调查项目

Flame Atomic Absorption Spectrophotometric Determination of High-content of Copper in Copper Materials Using Sub-sensitive Spectral Line

摘要:
利用铜的原子吸收光谱次灵敏线249.20 nm,并适当偏转燃烧器角度,原子吸收分光光度法测定含铜物料中的高含量铜。试验了铜的原子吸收光谱次灵敏线、试液酸度、可能共存元素等因素对高含量铜测定的影响。对含铜为400 μg/mL的标准溶液进行11次连续测定,方法精密度(RSD)为0.82%。对铜含量不高于75%的铜精矿、海绵铜和铜泥等样品中铜进行测定,结果与其他方法吻合。
- X射线粉晶衍射法 /
- 磷及其化合物 /
- 磷比
Abstract: A method for the determination of high-content of copper in copper materials by flame atomic absorption spectrophotometry using sub-sensitive spectral line at 249.20 nm is reported in this paper. The effects of sub-sensitive spectral line, acidity of testing solution，co-existent metallic elements on the determination of Co were studied. The precision test was implemented for standard solution with Cu concentration of 400 μg/mL with precision of better than 0.82%RSD (n=11). The method has been applied to the determination of copper in copper concentrate, copper sponge and copper sludge, in which the copper content is less than 75%. The results are in good agreement with those by other methods.
- sub-sensitive /
- spectral /
- line