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
出处
《冶金分析》
CAS
CSCD
北大核心
2001年第6期1-3,共3页
Metallurgical Analysis
关键词
钛
杂多蓝
丁基罗丹明B
光度法
测定
矿石
titanium
heteropoly blue
butyl rhodamine B
spectrophotometry
