DETERMINATION OF LOW-LEVEL SR-90 IN ENVIRONMENTAL MATERIALS - A NOVEL-APPROACH TO THE CLASSICAL METHOD

被引：33

作者：

BOJANOWSKI, R

KNAPINSKASKIBA, D

机构：

[1] Institute of Oceanology, Polish Academy of Sciences, Sopot

来源：

JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY-ARTICLES | 1990年 / 138卷 / 02期

关键词：

D O I：

10.1007/BF02039846

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

A method was developed for the separation of strontium from large amounts of calcium which does not depend on fuming nitric acid. A sample in the form of mixed carbonates or oxides is stirred into concentrated nitric acid in the proportion 1:7 w/v. Strontium forms insoluble nitrates while calcium remains in the solution. Two re-precipitation steps combined with an acetone wash yield a very pure strontium salt which is suitable for gravimetric determination of recovery. The method, devised originally for90Sr assay in sea water, can also be applied to solid samples which present analytical problems due to their high calcium content. © 1990 Akadémiai Kiadó.

引用

页码：207 / 218

页数：12

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