微分电位溶出法测定微量铜

Measure Trace Copper in the Way of Differential Voltage Dissolving

实验表明,铜离子在0.1mol·1^(-1)草酸——氢氧化钠介质中,电位在-0.198V出现灵敏的溶出峰,其峰高与铜的含量成正比。

The experiment indicates, the peak is sensitive and the peak is direct proportion to copper content when Cu2+ is in the medium of 0. 1 mol.1-1 oxalic acid - sodium hydroxide and the voltage is- 0.198V.