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Progress towards the development of a rapid analytical approach for separation of 226Ra using dibenzo-18-crown-6 ether functionalised silica (SiO2) disks

Mohamud, Hibaaq, Van Es, Elsje, Sainsbury, T, Ivanov, P, Russell, B and Regan, Patrick (2017) Progress towards the development of a rapid analytical approach for separation of 226Ra using dibenzo-18-crown-6 ether functionalised silica (SiO2) disks Radiation Physics and Chemistry.

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Abstract

A novel dibenzo-18-crown-6 ether (DB-18CE-6)- functionalised silica (SiO2) disk was found to be a capable source preparation technique for the rapid analysis of 226Ra by alpha-spectrometry. DB-18CE-6 was chemically immobilised onto the surface of SiO2 disks. It is anticipated that the high levels of selectivity of DB-18CE-6 for radium will allow for an efficient chemical separation of 226Ra from other elements present in sample matrices. 226Ra was adsorbed as a monolayer onto the surface of the silica disks, attaching to the functionalised centres of the DB-18CE-6 structure, forming a high resolution counting source for alpha-spectrometry. The chemical recovery of radium from synthetic samples was 2.3% at pH 2, with higher recoveries expected over the pH range of 4−10.

Item Type: Article
Divisions : Faculty of Engineering and Physical Sciences > Physics
Authors :
NameEmailORCID
Mohamud, Hibaaqh.mohamud@surrey.ac.ukUNSPECIFIED
Van Es, Elsjee.vanes@surrey.ac.ukUNSPECIFIED
Sainsbury, TUNSPECIFIEDUNSPECIFIED
Ivanov, PUNSPECIFIEDUNSPECIFIED
Russell, BUNSPECIFIEDUNSPECIFIED
Regan, PatrickP.Regan@surrey.ac.ukUNSPECIFIED
Date : 9 February 2017
Funders : EPSRC
Identification Number : https://doi.org/10.1016/j.radphyschem.2017.02.020
Copyright Disclaimer : © 2017 The Authors. Published by Elsevier Ltd. This is an open access article under the CC BY license (http://creativecommons.org/licenses/BY/4.0/).
Uncontrolled Keywords : Radiochemistry analysis; 226Ra; Alpha-spectrometry; Adsorption; Chemical recovery; Crown ethers
Depositing User : Melanie Hughes
Date Deposited : 26 May 2017 10:53
Last Modified : 26 May 2017 10:53
URI: http://epubs.surrey.ac.uk/id/eprint/841185

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