Standard No.:	GB 7473-1987
English Name:	Water quality; Determination of copper; 2,9-Dimethyl-1,10-phenanthroline spectrophotometric method
Chinese Name:	水质 铜的测定 2,9-二甲基-1,10-菲罗啉分光光度法
Chinese Classification:	Z16    Analysis methods for toxic substances in water
Professional Classification:	GB    National Standard
Issued by:	State Environmental Protection Administration
Issued on:	1987-03-06
Implemented on:	1987-8-1
Status:	superseded
Superseded by:	HJ 486-2009 Water quality - Determination of copper - 2,9-Dimethy-1,10-phenanthroline spectrophotometric method
Superseded on:	2009-11-1
Abolished on:	2009-11-01
Language:	English
File Format:	PDF
Word Count:	1500 words
Price(USD):	45.0
Delivery:	via email in 1~3 business day

本标准适用于地面水、生活污水和工业废水中铜的测定。在被测溶液中，如有大量的铬和锡、过量的其他氧化性离子、以及氰化物、硫化物和有机物等对测定铜有干扰。加入亚硫酸使铬酸盐和络合的铬离子还原，可以避免铬的干扰。加入盐酸羟胺溶液，可以消除锡和其他氧化性离子的干扰。通过消解过程，可以除去氰化物、硫化物和有机物的干扰。取50ml试份，比色皿光程10mm，铜的最低检测浓度为0.06mg/L，测定上限为3mg/L。