【摘要】 本文研究了碘化钾与铜离子反应形成碘化亚铜沉淀,过滤分离后,过剩的碘和碘化钾在蒸干时挥发除去。痕量镍与丁二酮肟生成有色络合物,以分光光度法测定之。0～15μg/25mL范围内符合朗伯-比尔定律。用于铜合金中微量镍的测定,取得满意结果。更多还原

【Abstract】 In this paper, the reaction of potassium iodide and copper ion is studied, which formation is cuprous iodide. Redundant iodine and potassium iodide are gotten rid of when they are dried out. Coloured complex compound are formed by the reaction of trace amount of Nickel and dimethylglyoxime. It is measured by Spectrophotometry. Beer’law is obeyed in the range of 0-15 u g per 25 mL. Trace amount of Nickel in copper alloy is measured and its effect is satisfactory.更多还原