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Quantitation of protactinium, 231Pa in abyssal carbonate

van Calsteren, Peter and Thomas, Louise (2012). Quantitation of protactinium, 231Pa in abyssal carbonate. Journal of Analytical Atomic Spectrometry, 27(6) pp. 952–956.

DOI (Digital Object Identifier) Link: https://doi.org/10.1039/C2JA30026E
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Abstract

Quantitation of protactinium, 231Pa in abyssal carbonates at ~10–12 g g–1 levels, presents certain challenges because it is the only isotope of this element that is present in the natural environment and its half-life of 32 800 y is too long for useful measurement using alpha-particle or gamma-ray spectroscopy. However, because it is an isotope in the 235U decay chain, closely linked to the 238U decay chain, quantitation can be achieved relative to a carbonate standard in secular radioactive equilibrium. The 238U, 235U, 234U, 230Th and 232Th isotopes in the carbonate standard are determined with a mixed 236U-229Th spike using isotope dilution protocols and a Multi-Collector Inductively Coupled Plasma Mass Spectrometer.

Item Type: Journal Item
Copyright Holders: 2012 The Royal Society of Chemistry
ISSN: 1364-5544
Academic Unit/School: Faculty of Science, Technology, Engineering and Mathematics (STEM) > Environment, Earth and Ecosystem Sciences
Faculty of Science, Technology, Engineering and Mathematics (STEM)
Related URLs:
Item ID: 37388
Depositing User: Peter van Calsteren
Date Deposited: 10 Apr 2013 13:45
Last Modified: 08 May 2019 13:38
URI: http://oro.open.ac.uk/id/eprint/37388
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