Document Detail

Speciation measurements of uranium in alkaline waters using diffusive gradients in thin films technique.
MedLine Citation:
PMID:  17723602     Owner:  NLM     Status:  PubMed-not-MEDLINE    
This work investigated the application of diffusive gradients in thin films technique (DGT) to uranium speciation measurements in natural water. Two binding phases were examined, a commercially available affinity membrane, Whatman DE 81 (DE 81), with amino binding functional groups and the conventionally used Chelex 100 beads imbedded polyacrylamide hydrogel (Chelex) with iminodiacetate functional groups. The DGT devices assembled with the binding phases of DE 81 (DE 81 DGT) and Chelex gel (Chelex DGT) were tested both in synthetic river water solutions and in local river water. DE 81 DGT and Chelex DGT measured 80% and 75% of the total uranium in synthetic river water solution, respectively, and measured 73% and 60% of the total uranium in St. Lawrence River, Canada, respectively. The binding properties of the DE 81 membrane and Chelex gel for uranium, and the diffusion of uranyl complexes in the polyacrylamide gel (PAM) were also studied.
Weijia Li; Jiujiang Zhao; Chunsheng Li; Stephen Kiser; R Jack Cornett
Publication Detail:
Type:  Journal Article     Date:  2006-06-03
Journal Detail:
Title:  Analytica chimica acta     Volume:  575     ISSN:  1873-4324     ISO Abbreviation:  Anal. Chim. Acta     Publication Date:  2006 Aug 
Date Detail:
Created Date:  2007-08-28     Completed Date:  2007-08-29     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0370534     Medline TA:  Anal Chim Acta     Country:  Netherlands    
Other Details:
Languages:  eng     Pagination:  274-80     Citation Subset:  -    
Radiation Protection Bureau, Health Canada, A.L. 6302D1, 775 Brookfield Rd., Ottawa, Ont., K1A 1C1 Canada.
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