Ti-SAF-CTMAB树脂相光度法测定铁矿中微量钛  

Resin Phase Spectrophotometric Determination of Titanium in Iron Ores

作　　者：何久康 苏淑琴[1] 

机构地区：[1]内蒙古大学化学系

出　　处：《岩矿测试》1989年第2期106-108,共3页Rock and Mineral Analysis

摘　　要：在0.05—0.15mol/LH_2SO_4介质中,Ti与水杨基萤光酮(SAF)、溴化十六烷基三甲胺(CTMAB)反应生成有色络合物,经724弱酸型阳离子交换树脂交换,在树脂相光度法测定微量钛。其λ_(max)=600nm,表观ε=8.0×10~6L·mol~ (-1)·cm^(-1)。0～2.5μgTi/250ml服从比尔定律。方法用于铁矿中微量钛的测定,结果满意。In an acid solution(0.05-1).15mol/LH2SO4)the red-purple colour of the Ti-SAF-CTMAB complex can be adsorbed on the resin. The maximum absorption of the resin phase is at 600nm,with a apparent molar absorption of 8.0×106. Beer's law is obeyed for titanium of 0-2.5μg/250ml. Ascorbic acid is added to reduce iron(III) and many other metals do not intefere. Satisfactory results was obtained in the analysis of iron ores.

关 键 词：铁矿 钛 树脂相 光度法 

分 类 号：P618.310.4[天文地球—矿床学]