C. Kroll et al., Differential pulse polarography and electron spin resonance spectroscopy of nitroxyl free radicals used as ESR-spin probes, BIOELECTR B, 48(1), 1999, pp. 233-236
Differential pulse polarography (DPP) and electron spin resonance (ESR) wer
e used to study the influence of substituents and of the pH of the medium o
n DPP peak potentials (electrochemical reduction) resp. k(reduction) (chemi
cal reduction) of nitroxyl free radicals. The DPP peak potentials can be us
ed to select the appropriate nitroxide spin label for relevant biochemical
and biophysical applications. (C) 1999 Elsevier Science S.A. All rights res
erved.