Simultaneous determination of 210Pb and 210Po in seafood samples using liquid scintillation counting

被引：8
|
作者：
Kong, Xiangyin [1 ]
Yin, Liangliang [1 ]
Ji, Yanqin [1 ]
机构：
[1] Chinese Ctr Dis Control & Prevent, China CDC Key Lab Radiol Protect & Nucl Emergency, Natl Inst Radiol Protect, Beijing, Peoples R China
来源：
JOURNAL OF ENVIRONMENTAL RADIOACTIVITY | 2021年 / 231卷
关键词：
Pb-210; Po-210; PSA; Liquid scintillation counting; Simultaneous determination; RAPID-DETERMINATION; QUENCH; ALPHA; WATER;
D O I：
10.1016/j.jenvrad.2021.106553
中图分类号：
X [环境科学、安全科学];
学科分类号：
08 ; 0830 ;
摘要：
The measurement of Pb-210 and Po-210 in seafood samples has attracted tremendous interest because of their radiotoxicity. In this study, a fast and cost-efficient method for the simultaneous determination of Pb-210 and Po-210 in seafood samples by ultralow-level liquid scintillation counting after separation on a Sr center dot spec column was developed. The recoveries of Pb-210 and Po-210 were similar to 70% and similar to 85%, respectively. The minimum detectable activity of the proposed method for Pb-210 and Po-210 was 3.85 Bq/kg and 1.50 Bq/kg, respectively, which is suitable for the determination of Pb-210 and Po-210 in seafood samples. The radiochemical procedure was validated by measuring Pb-210 and Po-210 activity concentrations in IAEA-certified reference materials and successfully applied to shrimp and clam samples.
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页数：6
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