DETERMINATION OF THORIUM ISOTOPES IN GAS LANTERN MANTLES BY ALPHA-SPECTROMETRY

被引：11

作者：

DORETTI, L

FERRARA, D

BARISON, G

机构：

[1] Servizio di Sicurezza del Lavoro e Protezione Sanitaria del CNR, Padova, 35020

来源：

JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY-ARTICLES | 1990年 / 141卷 / 01期

关键词：

D O I：

10.1007/BF02060199

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

A procedure for the determination of the three main isotopes of thorium in gas lantern mantles by alpha-spectrometry has been developed. The samples examined were dissolved in concentrated nitric acid and thorium was precipitated as hydroxide. Thorium was then dissolved in hydrochloric acid to be extracted into a TOPO solution, back-extracted with sulfuric acid, electrodeposited onto a steel disc and finally counted alpha-spectrometrically. The radiochemical recovery for thorium was 94% with a counting efficiency of 37%. © 1990 Akadémiai Kiadó.

引用

页码：203 / 208

页数：6

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