ISSN:
1040-0397
Keywords:
Detector
;
Wall-jet electrode
;
Flow-injection analysis
;
Characterization
;
Chemistry
;
Polymer and Materials Science
Source:
Wiley InterScience Backfile Collection 1832-2000
Topics:
Chemistry and Pharmacology
Notes:
A “wall-jet” electrode (WJE) was studied as an electrochemical deteaor for flow-injection analysis (FIA). Mathematical expressions were obtained for the peak current responses of the electrode, both for an uncoiled open tubular conduit and also in the presence of a packed-bed reactor between the injection valve and detector. The derived relationships between peak current and volumetric flow rate, and injected sample volume and concentration of the analyte were verified by using the ferricyanide ion and hydrogen peroxide as test samples. In general, theory and experiment were in good agreement although a discrepancy in the volumetric flow rate dependence of the peak current was observed in the presence of a packed-bed reactor.
Additional Material:
6 Ill.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1002/elan.1140061127
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