Spectrophotometric studies and applications for the determination of Ni²⁺ in zinc-nickel alloy electrolyte

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• 作者：Xiaoping Qiao ; ^{qiao.xp@stu.xjtu.edu.cn} ; Helin Li ; Wenzhen Zhao ; Dejun Li
• 关键词：Ni2+ determination ; Spectrophotometry ; Zinc&ndash ; nickel ; Electrolyte
• 刊名：Spectrochimica Acta Part A ; Molecular and Biomolecular Spectroscopy
• 出版年：2012
• 期刊代码：99_13861425
• 类别：ch
• 出版时间：September, 2012
• 卷：95
• 期：Complete
• 页码：576-581
• 文件大小：345 K

摘要

The absorption properties of zinc-nickel alloy electrolyte were studied by visible spectrophotometer. The results show that the relationship between the absorbance of the zinc-nickel alloy electrolyte and Ni²⁺ concentration in the electrolyte obeys Beer鈥檚 law at 660 nm. In addition, other components except Ni²⁺ in the zinc-nickel alloy electrolyte such as zinc chloride, ammonium chloride, potassium chloride and boric acid have no obvious effect on the absorbance of zinc-nickel alloy electrolyte. Based on these properties, a new method is developed to determine Ni²⁺ concentration in zinc-nickel alloy electrolyte. Comparing with other methods, this method is simple, direct and accurate. Moreover, the whole testing process does not consume any reagent and dilution, and after testing, the electrolyte samples can be reused without any pollution to the environment.