On the use of 225Ra as yield tracer and Ba(Ra)SO4 microprecipitation in 226Ra determination by α-spectrometry

被引：27

作者：

Blanco, P

Lozano, JC

Tomé, FV

机构：

[1] Univ Extremadura, Dept Fis, Fac Ciencias, E-06071 Badajoz, Spain

[2] Univ Salamanca, Lab Radiactividad Ambiental, Fac Ciencias, E-37008 Salamanca, Spain

来源：

APPLIED RADIATION AND ISOTOPES | 2002年 / 57卷 / 06期

关键词：

Ra-226; determination; alpha-spectrometry; geological samples;

D O I：

10.1016/S0969-8043(02)00231-2

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

A simple procedure for the determination of Ra-226 in geological samples using alpha-spectrometry is presented. The method uses Ra-225 as yield tracer, and microprecipitation of Ba(Ra)SO4 for source preparation. Extensive studies were performed in order to determine the chemical yield of the proposed procedure with precision. The method was tested on a geological reference sample, and gave satisfactory results and high reproducibility. (C) 2002 Elsevier Science Ltd. All rights reserved.

引用

页码：785 / 790

页数：6

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