Detection of radium at the attogram per gram level in copper by inductively coupled plasma mass spectrometry after cation-exchange chromatography. Issue 17 (24th April 2020)

• Record Type: Journal Article
• Authors: Bonin, Mélodie; Larivière, Dominic; Povinec, Pavel P.
• Is Part Of: Analytical methods. Volume 12:Issue 17(2020)
• Page Start: 2272
• Page End: 2278
• Publication Date: 2020-04-24
• Subjects: Chemistry, Analytic -- Periodicals; Analytical biochemistry -- Periodicals; Chemical laboratories -- Standards -- Periodicals; 543.1905
• DOI: 10.1039/d0ay00512f
• Languages: English
• ISSNs: 1759-9660

Abstract

Abstract : In this study, a new method was developed for the separation and isolation of radium from metallic copper. Abstract : In this study, a new method was developed for the separation and isolation of radium from metallic copper. Radium was separated from matrix constituents and possible impurities using an AG50W-X8 cationic resin and a series of specific-pH eluants containing complexing ligands. An instrumental detection limit of 2 mBq L −1 (53 fg L −1 ) and a quantification limit of 6 mBq L −1 (175 fg L −1 ) were achieved when the separation method was coupled with ICP-MS. The limits of detection and quantification for the new method translate into 0.3 μBq g −1 (9 ag g −1 ) and 1 μBq g −1 (28 ag g −1 ), respectively, for a 100 g sample treated by leaching. This method can be used to measure radium content at the ultratrace level in copper to be used in the fabrication of sensitive radiation detectors.