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.
出处
《光谱实验室》
CAS
CSCD
1999年第3期337-339,共3页
Chinese Journal of Spectroscopy Laboratory
关键词
铜
DSPCF
分光光度法
测定
水
饮用水
Copper,1,5di(2Hydroxy5Sulfophenyl)3Cyanoformazan Disodium Salt(DSPCF),Spectrophotometry.
