Examination of copper and copper-silver alloy electrodes for the electrochemical detection of amines and amino acids
Date
2000
Authors
Olson, Benjamin Arnold
Major Professor
Advisor
Johnson, Dennis C.
Committee Member
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Abstract
Copper and copper-silver alloy electrodes were examined for use as electrochemical detectors of amines and amino acids. The copper-silver alloy electrodes have a higher response for amine oxidation than either copper or silver electrodes. The adsorbtion of amines to copper electrodes was examined using changes in solution pH. It was concluded that the amine nitrogen atoms pre-adsorb and complex with the electrode surface before oxidation. For the nitrogen atoms to adsorb, lone pairs of electrons must form coordination bonds with the charged electrode surface.
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thesis