摘要
本文研究了在十二烷基苯磺酸钠存在下，ｍｅｓｏ－四（３－溴－４－羟基－５－甲氧基苯基）卟啉与铜的显色反应。络合物的最大吸收波长为４２０ｎｍ，表现摩尔吸光系数为２．４×１０￣５Ｌ·ｍｏｌ￣（－１）·ｃｍ￣（－１）．铜含量在０～６．０μｇ／（２５ｍｌ）范围内符合比尔定律，络合物的组成为Ｃｕ（Ⅱ）：Ｔ（ＢＨＭＯＰ）Ｐ＝１：２，本法已用于水样中痕量铜的测定，其结果与原子吸收法（ＡＡＳ）基本一致。
The colour reaction of copper(Ⅱ)with meso-tetra(3-bromo-4-hydroxy-5-methoxy phenyl)porphyrin[T(BHMOP)P] in the presence of sodium dodecyl ben-zene Sulforade(SDBS)has been studied. The complex has a maximun absorption at 420nm with a molar absorptivity of 2.4×10￣5L·mol￣(-1)·cm￣(-1). Beer's law is obeyed for cop-per(Ⅱ)concentration in the range of 0～6 μg/(25ml).The ratio of Cu(Ⅱ):T(BHMOP)P in the complex is 1:2.The method has been applied to the determination oftrace copper(Ⅱ)in water samples. The resalts abtained are very close to those byatomic absorption spectrophotometry.
出处
《湖南大学学报（自然科学版）》
EI
CAS
CSCD
1994年第4期51-54,共4页
Journal of Hunan University:Natural Sciences
