Chemistry: electrical and wave energy – Processes and products
Patent
1977-10-25
1979-03-13
Edmundson, F.C.
Chemistry: electrical and wave energy
Processes and products
204 74, 204195B, 204195M, 204299EC, C25D 1300, C25B 300, G01N 2700
Patent
active
041441435
ABSTRACT:
A stable, apparently polymeric, form of 1,1'-dimethyl-4,4'-dipyridyl dichloride is non-reversibly produced on a solid, minigrid electrode surface by means of electrolysis of a solution of the dicationic species using a negative applied potential in the range where the cation radical is heterogeneously formed but not negative enough to produce the neutral species. For example, a thin film is formed on a gold electrode at a potential of between about -0.750 V and -0.950 V vs a Ag/AgCl reference electrode.
The electrode and stable surface films are electro-active in heterogeneous reduction and oxidation of large biological molecules, making the modified electrode useful, for example, in the quantitative analysis of heme proteins in biological fluids (blood, urine).
REFERENCES:
van Dam et al., J. Electrochem. Soc., vol. 121, pp. 1555-1558, 12/74.
Jasinski, J. Electrochem. Soc., vol. 124, pp. 637-641, 5/77.
Hawkridge Fredrick M.
Landrum Harlie L.
Bissell Barry S.
Edmundson F.C.
Shaweker Kenneth E.
Virginia Commonwealth University
Winland Thomas W.
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