钛锑钼杂多酸-丁基罗丹明B体系分光光度法测定矿石中钛  

Spectrophotometric determination of trace titanium in ore with Ti Ⅳ-SbⅢ-Mo.&heteropoly acid-butyl rhodamine B system

作　　者：黄诚[1] 尹红[1] 

机构地区：[1]吉首大学测试中心,湖南吉首416000

出　　处：《冶金分析》2001年第6期1-3,共3页Metallurgical Analysis

摘　　要：研究了钛锑钼杂多酸与丁基罗丹明B的显色反应。在盐酸介质中 ,钛锑钼形成的杂多酸被抗坏血酸还原形成杂多蓝 ,再与丁基罗丹明B形成缔合物沉淀 ,经甲苯悬浮分离 ,缔合物由乙醇溶解 ,直接在有机相中测定其吸光度 ,最大吸收在5 90nm处 ,表观摩尔吸光系数ε =1 8× 10 5,钛浓度在 0～ 0 8μg/mL范围内服从比尔定律。本法用于矿石中痕量钛的测定 ,结果满意。In this paper,a spectrophotometric method for the determination of titanium based on the ion associate complex formed by heteropoly blue with BRB was described Its apparent molar absorptivity is 1 8×10 5L·mol 1 ·cm -1 ,Beer's law is obeyed in the concentration range of 0-0 8μg/mL for titanium This method has been used to determine the titanium content in ore and results are quite satisfactory

关 键 词：钛 杂多蓝 丁基罗丹明B 光度法 测定 矿石 

分 类 号：O657.32[理学—分析化学]