Determination of 99Tc in reactor loop decontamination liquid waste using extraction chromatography

被引：1

作者：

Chuaqui-Offermanns, N ^{[1
]}

Moir, DL ^{[1
]}

机构：

[1] Atom Energy Canada Ltd, Whiteshell Labs, Pinawa, MB R0E 1L0, Canada

来源：

JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY | 1997年 / 223卷 / 1-2期

关键词：

Coordination reactions - Liquid chromatography - Radioactive wastes - Solvent extraction - Solvents;

D O I：

10.1007/BF02223366

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

A new analytical method has been developed to determine Tc-99 in samples of aqueous radioactive waste containing high levers of Co-60 (10(3)-10(6) Bq/l) in mixed forms (simple cationic Co-60(2+) and coordinated complex forms). The method consists of selective extraction of the Tc-99 with a combination of cation exchange and solid-phase extraction resins under strong acid conditions. Quantification of the isolated Tc-99 is accomplished using liquid scintillation counting. The method provides high recoveries (>98%), is simpler than classical solvent extraction methods, eliminates the use of chlorinated organic solvents and the time of analysis is reduced by a factor of 2 when compared to solvent extraction methods.

引用

页码：73 / 77

页数：5