ISSN:
1040-0397
Keywords:
Uranium
;
Sensor
;
Remote sensing
;
Field screening
;
Modified electrode
;
Chemistry
;
Polymer and Materials Science
Source:
Wiley InterScience Backfile Collection 1832-2000
Topics:
Chemistry and Pharmacology
Notes:
A carbon paste electrode modified with the ligand propyl gallate is introduced for preconcentration/voltammetric measurements of low levels of uranium. The resulting preconcentrating electrode offers many attractive properties for on-site sensing of uranium, including high sensitivity and selectivity, self-cleaning capability, and use of nondeaerated quiescent solutions. The response is characterized with respect to the paste composition, preconcentration period, solution and differential pulse conditions, and other variables. The sensor displays high stability, and can be used repeatedly without regeneration. When coupled to a 100-ft (30.5-m) long shielded cable, the electrode offers a remote sensing capability, as illustrated in the determination of uranium in groundwater.
Additional Material:
9 Ill.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1002/elan.1140070308
Permalink
