Authors:
Bo-ping Li East China Institute of Technology Key Laboratory of Nuclear Resources and Environment of Ministry of Education Fu Zhou JX 344000 P.R. China

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Ming-biao Luo East China Institute of Technology Key Laboratory of Nuclear Resources and Environment of Ministry of Education Fu Zhou JX 344000 P.R. China

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Jiang-qiang Li East China Institute of Technology Key Laboratory of Nuclear Resources and Environment of Ministry of Education Fu Zhou JX 344000 P.R. China

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Wei Liu East China Institute of Technology Key Laboratory of Nuclear Resources and Environment of Ministry of Education Fu Zhou JX 344000 P.R. China

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Yu-zhen Sun East China Institute of Technology Key Laboratory of Nuclear Resources and Environment of Ministry of Education Fu Zhou JX 344000 P.R. China

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Guo-long Guo East China Institute of Technology Key Laboratory of Nuclear Resources and Environment of Ministry of Education Fu Zhou JX 344000 P.R. China

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Abstract  

An on-line solid phase micro-column extraction and determination system for trace Cd and Pb in nuclear fuel grade uranium compounds was established. The preconcentration of trace elements Cd and Pb from uranium compounds was achieved by adsorbing Cd and Pb on CL-7301 resin in hydroiodic acid media, while the uranyl ion passed through. The method coupled with flame atomic absorption spectrometry (FAAS) was applied to analysis trace Cd and Pb in real samples. The preconcentration factors obtained by this method were 320 and 180 each for Cd and Pb, respectively. Under the optimized conditions, the detection limits corresponding to three times the standard deviation of the blank were found to be 0.13 ng·mL−1 and 0.37 ng·mL−1 for Cd and Pb, respectively. The relative standard deviation (RSD) and the recoveries of standard addition (spiked with 1–5 ng of Cd and Pb) were of <5% (n = 10) and 96.2%–102.3%, respectively. Precision was also evaluated and found to be ≤4.3% (N = 11). The proposed method was successfully used for the determination of trace Cd and Pb in commercially available uranium compounds (e.g., uranyl acetate and triuranium octoxide).

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Journal of Radionalytical and Nuclear Chemistry
Language English
Size A4
Year of
Foundation
1968
Volumes
per Year
1
Issues
per Year
12
Founder Akadémiai Kiadó
Founder's
Address
H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
Publisher Akadémiai Kiadó
Springer Nature Switzerland AG
Publisher's
Address
H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
CH-6330 Cham, Switzerland Gewerbestrasse 11.
Responsible
Publisher
Chief Executive Officer, Akadémiai Kiadó
ISSN 0236-5731 (Print)
ISSN 1588-2780 (Online)