钛与溴邻苯三酚红和罗丹明6G双显色剂协同显色的研究及其应用  

STUDY ON THE SYNERGISTIC COLOUR OF TITANIUM WITH BROMOPYROGALLOL AND RHODAMINE 6G AND ITS APPLICATION

作　　者：张明翠[1] 孙晗龙 胡凡[1] 胡培亮[1] 

机构地区：[1]安徽师范大学化学系,芜湖师专化学系

出　　处：《安徽师大学报》1996年第1期63-66,共4页

摘　　要：本文研究了在ＰＶＡ１２４存在下，钛（ＩＶ）与溴邻苯三酚红和罗丹明６Ｇ的协同显色反应，探讨了利用该反应分光光度法测定钛的最佳条件，在硫酸介质中，钛与溴邻苯三酚红和罗丹明６Ｇ形成红色配合物，其最大吸收波长λｍａｘ为５６０ｎｍ，表观摩尔吸光系数ε５６０为１．２９×１０５Ｌ·ｍｏｌ－１ｃｍ－１，钛量在０－８μｇ／２５ｍｌ范围内符合比耳定律。A method is proposed for the spectrophotometric delermination of titanium with bromopyrogallol and rhodamine 6G by synergistic colour reaction. A red coloured complex is formed in a dilute sulfuric acid medium contained PVA124,and a molar absorptivity is 1.29×105L·mol-1·cm-1 at 560nm,This method has been used for determination of titanium in alloys with satisfactory resuIty.

关 键 词：钛 溴邻苯三酚红 罗丹明6G 协同显色 分光光度法 

分 类 号：O614.411[理学—无机化学]