Authors:
R. Tinker University of Melbourne School of Chemistry 3052 Parkville Victoria Australia

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J. Smith University of Melbourne School of Chemistry 3052 Parkville Victoria Australia

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M. Cooper Australian Radiation Laboratory 3085 Yallambie Victoria Australia

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Abstract  

This paper examines the process of making a decision on the optimum technique for the measurement of low concentrations of226Ra in environmental materials. The available counting techniques are alpha spectrometry, high resolution gamma spectrometry and liquid scintillation counting. The properties of the analytical technique; sensitivity, lower limit of detection (LLD) and precision are considered. Method selection is also restricted by the available sample size and activity. The influence of procedure backgrounds, geometric efficiency, chemical recovery, counting time, sample size and activity on the precision and LLD are investigated. The process of method selection, applicable to a wide range of samples, is illustrated by reference to sediments, waters and tissues.

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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)