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焦磷酸铜镀液中的磷酸根和焦磷酸根常用重量法或容量法测定，虽准确可靠，但分析手续冗长。本文用钒钼黄光度法测定，方法简便快速，分析的准确度和精密度能满足生产要求。１ 试 剂 以ＫＨ２ＰＯ４配制含磷 ０．１００ ０ｍｇ／ｍｌ的标准溶液Ａ；含磷０．０１０ ０ ｍｇ／ｍｌ
Phosphate and pyrophosphate copper pyrophosphate plating solution commonly used gravimetric method or volumetric method, although accurate and reliable, but the lengthy analysis procedures. In this paper, vanadium molybdenum yellow photometric method, the method is simple and rapid, the accuracy and precision of the analysis can meet the production requirements. 1 Reagents KH2PO4 containing 0.100 0mg / ml phosphorus standard solution A; phosphorus 0.010 0 mg / ml