Progress towards the development of a rapid analytical approach for separation of 226Ra using dibenzo-18-crown-6 ether functionalised silica (SiO2) disks
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Mohamud, Hibaaq, Van Es, Elsje, Sainsbury, T, Ivanov, P, Russell, B, Regan, Patrick and Ward, Neil (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, 140. pp. 57-60.
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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 | ||||||||||||||||||||||||
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| Divisions : | Faculty of Engineering and Physical Sciences > Physics | ||||||||||||||||||||||||
| Authors : |
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| Date : | 9 February 2017 | ||||||||||||||||||||||||
| Funders : | EPSRC | ||||||||||||||||||||||||
| DOI : | 10.1016/j.radphyschem.2017.02.020 | ||||||||||||||||||||||||
| Copyright Disclaimer : | © 2017 The Authors. Published by Elsevier Ltd. All rights reserved. This manuscript version is made available under the CC-BY-NC-ND 4.0 license http://creativecommons.org/licenses/by-nc-nd/4.0/ | ||||||||||||||||||||||||
| Uncontrolled Keywords : | Radiochemistry analysis; 226Ra; Alpha-spectrometry; Adsorption; Chemical recovery; Crown ethers | ||||||||||||||||||||||||
| Depositing User : | Users 8 not found. | ||||||||||||||||||||||||
| Date Deposited : | 26 May 2017 10:53 | ||||||||||||||||||||||||
| Last Modified : | 06 Jul 2019 05:23 | ||||||||||||||||||||||||
| URI: | http://epubs.surrey.ac.uk/id/eprint/841185 |
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