Sequential extraction for radionuclide fractionation in soil samples:: a comparative study

被引：40

作者：

Blanco, P

Tomé, FV

Lozano, JC

机构：

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

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

来源：

APPLIED RADIATION AND ISOTOPES | 2004年 / 61卷 / 2-3期

关键词：

alpha spectrometry; sequential extraction; natural radionuclides; reproducibility;

D O I：

10.1016/j.apradiso.2004.03.006

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

Two sequential extraction procedures, Tessier's method (Anal. Chem. 51(7) (1979) 844), and a current version known as Schultz's method (J. Environ. Radioact. 40(2) (1998) 155), were compared. The two procedures were applied to a natural soil sample that presents high activity concentrations in natural radionuclides of the U-238 series. Reproducibility studies of each method and a comparison between the two sets of results were performed for uranium, thorium, and radium. The results were different for each radionuclide. Analysis of the extracted fractions was carried out by alpha spectrometry. (C) 2004 Elsevier Ltd. All rights reserved.

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页码：345 / 350

页数：6

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