P350萃取色谱分离和岩石中痕量镓的测定  

Determination of Micro Amounts of Ga in Rocks by Chromato-graphic Separation 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》1985年第4期346-349,I0009,共5页Rock and Mineral Analysis

摘　　要：甲基膦酸二甲庚脂(简称P)作为镓、金的萃取剂已有报道,但迄今未见P萃取色谱分离镓的报导。本文研究了以聚二乙烯苯(X—5)型大孔吸附树脂为担体,P为固定相,考查对镓的反向色谱行为,以及盐析剂效应等,试验表明P是分离镓的良好固定相。A new extraction chromatographic technique for rapid separation of Ga in rocks using dimethylhepty]methylphosphonate(P_(350))as stationary phase and polydivinylbenzene(x-5)resin as supporter has been studied.The sample solution in 2.0 N HC1-3.4 N NaCl medium was introduced on the chromatographic column,Ga can be eluted quantitatively by water.The percentage recovery of Ga was 99.5-100.1%.This method is applicable to the determination of O.OOOOx-0.0x%gallium in rocks.

关 键 词：担体 P350 萃取色谱分离 聚二乙烯苯 镓的测定 盐析剂 大孔吸附树脂 甲基膦酸二甲庚脂 

分 类 号：O65[理学—分析化学]