光亮镍和珍珠镍镀液中镍的测定通常采用EDTA滴定法，该法选择性低，易造成环境污染，本文采用分光光度法进行分析。探讨了测量波长、硫酸浓度及干扰元素等的影响。该法在镍含量为0～200 mg范围内遵守比耳定律，测量结果准确，能满足实际生产的要求。
Nickel content in bright and pearl nickel plating baths are traditionally determined by EDTA titration, which has poor selectivity and brings environmental pollution. Spectrophotometric method was advanced in this article. The effect of measuring wave length, concentration of sulfuric acid and interfering elements on measured results was studied. The spectrophotometric method follows beer's law provided that nickel content is in the range of 0 to 200 mg, which is accurate and meets the demands of practice.
参考文献
| [1] | 丘山 .预镀镍溶液中盐酸和氧化镍含量的连续滴定[J].表面技术,1999,28(06):50. |
| [2] | 中南矿冶学院分析化学教研室.化学分析手册[M].北京:科学出版社,1982:622. |
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