P_(350)萃取色谱分离测定痕量Ga、In和Tl  

Determination of Traces of Ga,In and T1 by Extraction Chromatography with P_(350)

作　　者：钱程 Qian Cheng

机构地区：[1]辽宁省地质实验研究中心

出　　处：《岩矿测试》1987年第4期263-266,I0004,共5页Rock and Mineral Analysis

摘　　要：本文以动态法为基础研究了H_(2)SO_(4)-NaBr体系P_(350)萃取色谱分离Ga-In和Tl的色谱行为,并探索了影响分离的各种因素。首次提出P_(350)萃取色谱连续分离Ga、In和Tl的新途径。拟定了岩石、矿物中痕量Ga、In和Tl全差示吸光度法检测条件。The extraction chromatography of Ga,In and Tl was studied by the use of P_(350)as the stationary phase,polyethylenebenzyl absorption resin(X-5 type)as the carrier,and a 3 mol/L H_(2)SO_(4)-3 mol/L NaBr medium as the mobile phase.It was found that P_(350)is highly selective for the extraction of micro amounts of Ga,In and Tl,and the latter can be separated quantitatively from Fe,Al,Ti,Cu.Pb,Zn,Co,Ni,U,Th,etc.The determination was effected by photometry on a fully differential spectrophotometer,using Br-PADAP,butylrhoda-mine B and crystal violet as coloring reagents.

关 键 词：萃取色谱 色谱行为 连续分离 吸光度法 检测条件 痕量 

分 类 号：O65[理学—分析化学]