TBP萃淋树脂分离反相色层富集光度法测定矿石中的微量锡  

Photometric Determination of Micro Amount of Tin in Minerals by Reverse Phase Chromatographic Separation with TBP Extraction Resin

作　　者：初洪超 Chu Hong-zao

机构地区：[1]广东省地矿局第九实验室

出　　处：《岩矿测试》1984年第4期373-373,I0015,共2页Rock and Mineral Analysis

摘　　要：CTMAB—苯基荧光酮测定锡,灵敏高度,但选择性差,一般矿样要经分离,常见的是碘化物苯萃取;复杂样品不易掌握。本文试验了用TBP萃淋树脂分离反相色层富集苯基荧光酮光度法测定锡,在选定条件下对二十余种共存离子进行了试验,未发现明显干扰。A simple and highly selective photometric determination of micro amount of tin is based on reverse phase ch.romatographic separation with TBP extraction resin.More than twenty Kinds of metals in minerals did not interfere.It molar absorptivity is 1.48×10^(5)1 mol^(-1) cm^(-1) at 510 nm.The C.V.for sample containing 0.019%of Sn is 3.73%(n=15).The measurable concentration ran-ge is n×10^(-3)-10^(-1)%of tin.

关 键 词：苯基荧光酮 反相色层 TBP萃淋树脂 复杂样品 碘化物 共存离子 CTMAB 微量锡 

分 类 号：O65[理学—分析化学]