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Determination of uranium in environmental matrices by chelation ion chromatography using a high performance substrate dynamically modified with 2,6-pyridinedicarboxylic acid

Citation

Shaw, M and Hill, SJ and Jones, P and Nesterenko, PN, Determination of uranium in environmental matrices by chelation ion chromatography using a high performance substrate dynamically modified with 2,6-pyridinedicarboxylic acid, Chromatographia, 51, (11-12) pp. 695-700. ISSN 0009-5893 (2000) [Refereed Article]

DOI: doi:10.1007/BF02505407

Abstract

Chelation ion chromatography, involving a high efficiency neutral polystyrene-divinylbenzene resin dynamically coated with 2,6- pyridinedicarboxylic acid, has been developed as a novel technique for the quantitative determination of uranium in complex matrices. An isocratic separation method, using an eluent consisting of 1M KNO 3 , 0.5M HNO 3 and 0. 1 mM 2,6-pyridinedicarboxylic acid, allowed the uranyl ion to elute away from matrix interferences in under ten minutes. Detection was achieved using an Arsenazo III post column reaction system. Good recoveries were obtained from spiked mineral water and sea water and the standard addition curves produced good linearity (r 2 > 0.997) with a detection limit, calculated as twice baseline noise, of 20 μg L -1 . The procedure was applied to the determination of trace uranium in standard reference water and sediment samples. The results obtained compared well with the certified values for uranium.

Item Details

Item Type:Refereed Article
Research Division:Chemical Sciences
Research Group:Analytical Chemistry
Research Field:Separation Science
Objective Division:Expanding Knowledge
Objective Group:Expanding Knowledge
Objective Field:Expanding Knowledge in the Chemical Sciences
Author:Shaw, M (Dr Matt Shaw)
ID Code:19492
Year Published:2000
Web of Science® Times Cited:27
Deposited By:Chemistry
Deposited On:2000-08-01
Last Modified:2011-08-04
Downloads:0

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