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Indirect voltammetric determination of thiocyanate ions in electroplating solutions

机译:间接伏安法测定电镀液中的硫氰酸根离子

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摘要

Possibilities of determination of thiocyanate ions, which play an important role in e.g. improving the quality of the nickel electrodeposits, were studied. Two different ways of voltammetric determination of thiocyanate ions in real samples (matrix in nickel electroplating solution) were investigated: formation of complexes with either mercury or copper. In both cases the determination was performed without any sample digestion. The best results were reached for desorption of the copper-thiocyanate complex from the mercury electrode surface with limit of detection 10 mug L~(-1).
机译:硫氰酸根离子测定的可能性,例如在研究了改善镍电沉积质量的方法。研究了两种不同的伏安法测定实际样品(电镀镍溶液中的基质)中的硫氰酸根离子:与汞或铜形成络合物。在这两种情况下,均无需任何样品消化即可进行测定。汞-硫氰酸铜络合物从汞电极表面解吸达到了最佳结果,检出限为10杯L〜(-1)。

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