Determination of 36Cl in nuclear waste from reactor decommissioning

被引：31

作者：

Hou, Xiaolin ^{[1
]}

Ostergaard, Lars Frlsig ^{[1
]}

Nielsen, Sven P. ^{[1
]}

机构：

[1] Tech Univ Denmark, Riso Natl Lab, DK-4000 Roskilde, Denmark

来源：

ANALYTICAL CHEMISTRY | 2007年 / 79卷 / 08期

关键词：

D O I：

10.1021/ac070100o

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

An analytical method for the determination of Cl-36 in nuclear waste such as graphite, heavy concrete, steel, aluminum, and lead was developed. Several methods were investigated for decomposing the samples. AgCl precipitation was used to separate Cl-36 from the matrix elements, followed by ion-exchange chromatography to remove interfering radionuclides. The purified Cl-36 was then measured by liquid scintillation counting. The chemical yield of chlorine, as measured by ICPMS, is above 70% and the decontamination factors for all interfering radionuclides are greater than 10(6). The detection limit of this analytical method for Cl-36 is 14 mBq. The method has been used to determine Cl-36 in heavy concrete, aluminum, and graphite from the Danish DR-2 research reactor.

引用

页码：3126 / 3134

页数：9

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