O-/p-Quinones

Fig. 2.3. Plot of the second order rate constants for homogeneous oxidation of NADH by a variety of different mediators as a function of their electrode potential. The graph uses results taken from work by Miller and coworkers [21-26] and from [28]. The different mediator groups are ( ) aminopyrimidines (A) 1,4-diaminobenzenes (A) 1,2-diaminob-enzenes ( ) o-quinones (O) p-quinones ( ) ferrocenes (+) ferrocyanide and (O) heteropolyanions.

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