溴化5-[4-(4-吡啶丁氧基)苯基]-10,15,20-三苯基卟啉对铜离子显色反应的研究  

Study on the Colour Reaction of Cu 2+ with 5 [4 (4 Pyridiniumbutoxy)Phenyl] 10,15,20 Triphenylporphyrin Bromide

作　　者：刘彦钦[1] 邓辉[1] 韩士田[1] 

机构地区：[1]河北师范大学化学系

出　　处：《光谱实验室》1999年第2期165-167,共3页Chinese Journal of Spectroscopy Laboratory

基　　金：河北省自然科学基金

摘　　要：本文研究了溴化５－［４－（４－吡啶丁氧基）苯基］－１０，１５，２０－三苯基卟啉与Ｃｕ２＋的显色反应条件，络合物最大吸收波长为４１４ｎｍ，试剂（Ｈ４Ｐ２＋）最大吸收波长为４４６ｎｍ。对比度为３２ｎｍ，试剂与铜络合比为１∶１，表观摩尔吸光系数为２．５×１０５Ｌ·ｍｏｌ－１·ｃｍ－１，铜含量在０．２—１．０μｇ／１０ｍＬ内符合比耳定律，可用于痕量铜的测定。Colour reaction of Cu 2+ with 5 [4 (4 pyridiniumbutoxy)phenyl] 10,15,20 triphenylporphyrin bromide was studied . The soret band of complex lies at 414nm and diacid form of porphyrin reagent(H 4P 2+ ) lies at 446nm.The contrast is 32nm . The ratio of Cu 2+ : reagent in the complex is (1+1) .The apparent molar absorptivity of the complex is 2.5×10 5 L ·mol -1 ·cm -1 .Beer's law is obeyed in the range of 0.2 1.0 μg/10mL . This method can be used for determination of trace Cu 2+ .

关 键 词：卟啉 吡啶 季铵盐 铜 分光光度法 测定 

分 类 号：O614.121[理学—无机化学]