摘要
本文研究和比较了几种表面活性剂存在下，苯基荧光酮（ＰＦ）与钛的显色反应。试验表明，在０．０３－０．０５ｍｏｌ·Ｌ－１的硫酸介质中，钛与ＰＦ形成蓝紫色配合物，最大吸收峰在５９５ｎｍ处，表观摩尔吸光系数ε＝６．３×１０４Ｌ·ｍｏｌ－１·ｃｍ－１。钛量在０－１５μｇ／２５ｍＬ范围内服从比耳定律。方法灵敏度高，选择性好，抗干扰能力强，体系稳定，测定煤矸石中钛，结果满意。
The colour reaction of titanium with phenylfluorone (PF) was investigated in the presence of several surfactant.In a solution of 0.03-0.05mol·L -1 sulfuricacid,the violet blue complex of titanium with PF was formed.The wave length of maximum absorbance of complex is 595nm.Apparent molar absorptivity is 6.3×10 4L·mol -1 ·cm -1 .Beer's law is obeyed in the range of 0-15μg/25mL for titanium.This method proved high sensitivity,high stability and good selectivity.Satisfactory result was obtained for determination of titanium in coal gangue.
出处
《光谱实验室》
CAS
CSCD
1999年第1期94-96,共3页
Chinese Journal of Spectroscopy Laboratory
关键词
钛
分光光度法
煤矸石
测定
Titanium,Spectrophotometry,Coal Gangue.
