Authors:
G. Ham National Radiological Protection Board Chilton OX11 0RQ Didcot Oxon UK

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L. Ewers National Radiological Protection Board Chilton OX11 0RQ Didcot Oxon UK

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R. Clayton National Radiological Protection Board Chilton OX11 0RQ Didcot Oxon UK

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Abstract  

Improvements in analytical methodology for the determination of210Pb and210Po in environmental materials have been the subject of continuing study. Early work showed that the most time-consuming part of the analysis was the wet ashing stage. Investigations have now been carried out to improve this part of the analytical scheme. This paper describes a modified method that has been developed and tested and which has been in routine use for about one year. The time required for the analysis has been reduced and the spectral quality of the sources has been improved. Test samples gave chemical recoveries that were higher, but this improvement has not yet been observed in operational work. Some analytical schemes in which210Pb and210Po are to be determined in the same sample require the addition of stable lead carrier. In some cases, this can lead to the addition of significant quantities of210Po. The results of an investigation of the210Po content of various lead carriers are described and the implications of their use on the determination of210Po in environmental materials are discussed.

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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)