DSPCF分光光度法测定水中微量铜  

Spectrophotometric Determination of Microamounts Copper in Water with DSPCF

作　　者：郭家军[1] 黄美新[1] 

机构地区：[1]湘潭工学院资工系

出　　处：《光谱实验室》1999年第3期337-339,共3页Chinese Journal of Spectroscopy Laboratory

摘　　要：在醋酸－醋酸钠介质中，铜与ＤＳＰＣＦ形成稳定的紫红色配合物，其最大吸收波长为５８０ｎｍ，表观摩尔吸光系数为４．８×１０４Ｌ·ｍｏｌ－１·ｃｍ－１，显色反应瞬间完成，有色配合物稳定２４ｈ以上。铜量在０—０．８ｍｇ／Ｌ范围内符合比耳定律。用于水样中微量铜的测定。A red violete complex of copper() with 1,5di(2hydroxy5sulfophenyl)3cyanoformazan disodium salt(DSPCF) was formed in the medium of HAcNaAc.The wave length of maximum absorbance of complex is 580nm.Apparent molar absorptivity is 4.8104Lmol-1cm-1.The color reaction is accomplish instantly.The colored complex is stable within 24h.Beers law is obeyed in the range 0-0.8mg/L for copper().Satisfactory result was obtained for determination of microamounts copper in water.

关 键 词：铜 DSPCF 分光光度法 测定 水 饮用水 

分 类 号：TU991.21[建筑科学—市政工程] O661.1[理学—分析化学]