用EDTA作显色剂 ,通过光度法测定酸性镀铜液中硫酸铜的含量。研究了测量波长、缓冲液的用量和EDTA用量对测量结果的影响 ,讨论了干扰因素的影响及其消除方法。硫酸铜含量在 0～ 4mg/mL范围内遵守比尔定律 ,本方法简便、快捷 ,准确度和精密度高 ,适用于大批量样品的分析 Using EDTA as a chromogenic reagent, the copper sulfate content in the acidic copper plating solution was determined by spectrophotometry. The effects of measuring wavelength, buffer amount and EDTA dosage on the measurement results were studied. The influence of interference factors and the elimination methods were discussed. Beer’s law is obeyed in the range of 0 ~ 4 mg / mL copper sulfate, which is simple, rapid, accurate and precise. It is suitable for the analysis of large quantities of samples