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Easily Constructed Microscale Spectroelectrochemical Cell

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

Abstract: The design and performance of an easily constructed cell for microscale spectroelectrochemical analysis is described. A cation exchange polymer film, Nafion, was used as a salt bridge to provide ionic contact between a small sample well containing a coiled wire working electrode and separate, larger wells housing reference and auxiliary electrodes. The cell was evaluated using aqueous ferri/ferrocyanide as a test system and shown to be capable of relatively sensitive visible absorption measurements (path lengths on the order of millimeters) and reasonably rapid bulk electrolysis (~ 5 min) of samples in the 1 to 5 µL volume range. Minor alterations to the cell design are cited that could allow for analysis of sub-microliter volumes, rapid multi-sample analysis, and measurements in the ultraviolet spectral region.

Additional Information

Publication
Spectroscopy Letters, 2010, 43 (7/8)
Language: English
Date: 2010
Keywords
Spectroelectrochemistry, Microscale Analysis, Electrochemical Cell