Construction and Characterization of Fiberoptic Spectrelectrochemical Probes for In Situ Analyses

UNCP Author/Contributor (non-UNCP co-authors, if there are any, appear on document)
Chad Brenneman (Creator)
Institution
The University of North Carolina at Pembroke (UNCP )
Web Site: http://www.uncp.edu/academics/library
Advisor
Paul Flowers

Abstract: Two kinds of fiberoptic spectroelectrochemical probes were constructed and characterized in vitro. The first probe performed spectroscopy by transmitting light from one end of a Pt cyclinder, acting as a working electrode, to the other. The second probe had a mirror at one end of a Pt cylinder, also acting as a working electrode. A ferri/ ferrocyanide couple was used as a test system. Cyclic voltammetry at the probe was slightly distorted due to unconventional cell geometry, but otherwise normal. Electrolysis times were long, 9 minutes, despite near thin layer conditions because of a large charging current. A study of absorbance at 420 nm vs. concentration of ferricyanide indicated that absorbance spectroscopy obeys the Beer-Lambert Law.

Additional Information

Publication
Other
Language: English
Date: 1997
Keywords
Fiberoptic Spectroelectrochemical, Electrode, Ferricyanide, Cyclic Voltammetry, Electrolysis, Beer-Lambert Law,

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