Journal of Radioanalytical and Nuclear Chemistry
Volume/Issue:
Volume 273: Issue 2
Determination of 226Ra in sediments by ICP-MS: A comparative study of three sample preparation approaches
Authors:
D. Larivière Trent University Environmental and Resources Studies 1600 West Bank Drive Peterborough ON K9J 7B8 Canada

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D. Brownell Trent University Environmental and Resources Studies 1600 West Bank Drive Peterborough ON K9J 7B8 Canada

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V. Epov Trent University Environmental and Resources Studies 1600 West Bank Drive Peterborough ON K9J 7B8 Canada

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R. Cornett

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R. Evans Trent University Environmental and Resources Studies 1600 West Bank Drive Peterborough ON K9J 7B8 Canada

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Pages:
337–344
Online Publication Date:
30 Jun 2007
Publication Date:
01 Aug 2007
Article Category:
Research Article
DOI:
https://doi.org/10.1007/s10967-007-6870-3
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Abstract  

Three protocols (Method I: ion chromatography (IC) and extraction chromatography (EC), Method II: precipitation followed by IC, and Method III: adsorption onto MnO2 followed by IC-EC) were investigated to determine their applicability for the separation and pre-concentration of 226Ra in sediments. 226Ra recoveries, measured using the isotope dilution method with 228Ra as yield tracer, and the removal of spectral and non-spectral interferences were evaluated. The formation of polyatomic interferences at m/z = 226 from elements found in the matrix of sediments was also investigated to assess the level of separation required. Methods I and III were found to be the most effective with respect to recoveries and interference removal. The efficiency of a rapid microwave based protocol for the complete digestion of 1 g of sediment is also described. The method was tested and 226Ra concentrations in the millibecquerel range (fg) were determined in a standard reference material and sediment cores collected from Lake Baikal.

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Cover Journal of Radioanalytical and Nuclear Chemistry
Journal of Radioanalytical and Nuclear Chemistry
Print ISSN:
0236-5731
Online ISSN:
1588-2780

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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)

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