The University of Southampton
University of Southampton Institutional Repository

Pre-concentration of naturally occurring radionuclides and the determination of 212Pb from fresh waters

Pre-concentration of naturally occurring radionuclides and the determination of 212Pb from fresh waters
Pre-concentration of naturally occurring radionuclides and the determination of 212Pb from fresh waters
A novel technique has been developed for determining the 212Pb activity of fresh waters. This is of interest to environmental monitoring programmes that utilise gross ?-activity methods to screen for anthropogenic radionuclides. The contribution from 212Pb varies, and is difficult to experimentally measure due to its relatively short half-life (t½ = 10.6 h) and low environmental activity (<0.1 Bq l?1). The use of a three-stage technique that encompasses a unique form of pre-concentration, separation and analysis by liquid scintillation counting allows a lower detection limit of 0.006 Bq l?1 with a chemical yield of 92.5 ± 5.6%. The measurement can be obtained within 7 h of sample collection, and is calculated using the radioactive decay of 212Bi. Other naturally occurring radionuclides may also be extracted using the pre-concentration stage of the technique, with efficiencies above 90% at a range of pH values.
212Pb activity, Fresh waters, Liquid scintillation counting
0265-931X
326-330
Burnett, J.L.
0adda654-356c-43b1-ab32-7d59f262d19f
Croudace, I.W.
24deb068-d096-485e-8a23-a32b7a68afaf
Warwick, P.E.
f2675d83-eee2-40c5-b53d-fbe437f401ef
Burnett, J.L.
0adda654-356c-43b1-ab32-7d59f262d19f
Croudace, I.W.
24deb068-d096-485e-8a23-a32b7a68afaf
Warwick, P.E.
f2675d83-eee2-40c5-b53d-fbe437f401ef

Burnett, J.L., Croudace, I.W. and Warwick, P.E. (2011) Pre-concentration of naturally occurring radionuclides and the determination of 212Pb from fresh waters. Journal of Environmental Radioactivity, 102 (4), 326-330. (doi:10.1016/j.jenvrad.2011.01.001).

Record type: Article

Abstract

A novel technique has been developed for determining the 212Pb activity of fresh waters. This is of interest to environmental monitoring programmes that utilise gross ?-activity methods to screen for anthropogenic radionuclides. The contribution from 212Pb varies, and is difficult to experimentally measure due to its relatively short half-life (t½ = 10.6 h) and low environmental activity (<0.1 Bq l?1). The use of a three-stage technique that encompasses a unique form of pre-concentration, separation and analysis by liquid scintillation counting allows a lower detection limit of 0.006 Bq l?1 with a chemical yield of 92.5 ± 5.6%. The measurement can be obtained within 7 h of sample collection, and is calculated using the radioactive decay of 212Bi. Other naturally occurring radionuclides may also be extracted using the pre-concentration stage of the technique, with efficiencies above 90% at a range of pH values.

Full text not available from this repository.

More information

Published date: April 2011
Keywords: 212Pb activity, Fresh waters, Liquid scintillation counting

Identifiers

Local EPrints ID: 183807
URI: https://eprints.soton.ac.uk/id/eprint/183807
ISSN: 0265-931X
PURE UUID: bbcf887b-013e-45af-a15d-42488d224b20

Catalogue record

Date deposited: 03 May 2011 14:05
Last modified: 16 Jul 2019 23:40

Export record

Altmetrics

Download statistics

Downloads from ePrints over the past year. Other digital versions may also be available to download e.g. from the publisher's website.

View more statistics

Atom RSS 1.0 RSS 2.0

Contact ePrints Soton: eprints@soton.ac.uk

ePrints Soton supports OAI 2.0 with a base URL of https://eprints.soton.ac.uk/cgi/oai2

This repository has been built using EPrints software, developed at the University of Southampton, but available to everyone to use.

We use cookies to ensure that we give you the best experience on our website. If you continue without changing your settings, we will assume that you are happy to receive cookies on the University of Southampton website.

×