A sensitive method based on HDEHP extraction and LSS for the determination of 90Sr in solid samples

被引：11
|
作者：
Laissaoui, A
Mulsow, S
Benmansour, M
La Rosa, JJ
IbnMajah, M
机构：
[1] Ctr Natl Energie Sci & Tech Nucl, Rabat, Morocco
[2] IAEA, Marine Environm Lab, MC-98012 Monaco, Monaco
来源：
JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY | 2002年 / 253卷 / 02期
关键词：
D O I：
10.1023/A:1019682716673
中图分类号：
O65 [分析化学];
学科分类号：
070302 ; 081704 ;
摘要：
An improved and rapid method is described for the determination of Sr-90 in environmental samples, through the separation of the daughter Y-90 at equilibrium. The procedure is based on the HDEHP solvent extraction in combination with liquid scintillation spectrometry (LSS). A low background QuantulusO has been optimized for low level counting of Cerenkov radiation emitted by the hard b-emitter Y-90. The counting efficiency was 60% and the background 0.53 cpm. The reliability and reproducibility of the method have been checked using IAEA reference materials. The chemical recovery for Y-90 extraction ranges from 83 to 90%.
引用
收藏
页码：335 / 337
页数：3
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