Sequential determination of 210Po and uranium radioisotopes in drinking water by alpha-particle spectrometry

被引：41

作者：

Benedik, L. ^{[1
]}

Vasile, M. ^{[1
]}

Spasova, Y. ^{[1
]}

Waetjen, U. ^{[1
]}

机构：

[1] Commiss European Communities, Joint Res Ctr, Inst Reference Mat & Measurements, B-2440 Geel, Belgium

来源：

APPLIED RADIATION AND ISOTOPES | 2009年 / 67卷 / 05期

关键词：

Polonium; Uranium; Alpha-particle spectrometry; Radiochemistry; Drinking water;

D O I：

10.1016/j.apradiso.2009.01.033

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

Procedures for the sequential determination of low level Po-210 and uranium radioisotopes in drinking water by alpha-particle spectrometry are presented. After addition of Po-208 and U-232 tracers, the radionuclides were preconcentrated from water samples by co-precipitation on Fe(OH)(3) or MnO2 at pH 9 using ammonia solution. The Po-210 source was prepared by spontaneous deposition onto a copper disc either before or after uranium separation. The uranium source for alpha-particle counting was prepared by micro co-precipitation with CeF3. The procedures were tested on mineral water and the results obtained are compared. (c) 2009 Elsevier Ltd. All rights reserved.

引用

页码：770 / 775

页数：6

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