溴化5-[4-(3-吡啶丙氧基苯基)]-10,15,20-三苯基卟啉对铜离子显色反应的研究  

Study on Colour Reaction of Cu ^( 2+ ) with 5- [4- (3 -Pyridiniumpropoxy) phenyl] -10, 15, 20 Triphenylporphyrin Bromide

作　　者：刘彦钦[1] 

机构地区：[1]河北师范大学化学系,石家庄市红旗大街105号050091

出　　处：《光谱实验室》2001年第4期462-464,共3页Chinese Journal of Spectroscopy Laboratory

基　　金：河北省自然科学基金资助项目

摘　　要：本文研究了溴化 5- [4 - (3-吡啶丙氧基苯基 ) ]- 10 ,15,2 0 -三苯基卟啉 ,在 p H=4 .0时与 Cu2 + 的显色反应条件 ,其络合物最大吸收波长为 4 13nm。在相同条件下 ,试剂最大吸收波长为 4 4 4nm,对比度大约30 nm。试剂与铜络合比为 1∶ 1,表观摩尔吸光系数为 2 .9× 10 5L· mol-1·cm-1,铜含量在 0— 6 0 μg/ L范围内符合比耳定律 ,可用于痕量铜的测定。Colour reaction of Cu 2+ with 5 [4 (3 pyridiniumpropoxy)phenyl] 10,15,20 triphenylporphyrin bromide was studied.The Soret band(maximum absoption band)of complex lies at 413nm,which was separated from its diacid form at 444nm.The contrast is about 30nm.The ratio of Cu 2+ ∶reagent in the complex is 1∶1.The apparent molar absorption coefficient of complex is 2.9×10 5 L·mol -1 ·cm -1 .Beer's law is obeyed in the ranges of 0—0.6 μg/10mL for Cu 2+ .This method can be applied for the determination of trace Cu 2+ .

关 键 词：分光光度法 铜 测定 痕量分析 溴化5-[4-(3-吡啶丙氧基苯基)]-10 15 20-三苯叶卟啉 

分 类 号：O614.121[理学—无机化学] O657.32[理学—化学]