Effect of Ionic Strength on the One-electron Reduction Potential Determined by Pulse Radiolysis Technique

It’s deeply analyzed whether or not to consider the effect of ionic strength, while determining one-electron reduction potentials of material by pulse radiolysis technique. Conclusions as follows: if reference itself is uncharged, for example: Anthraquinone-2-sulfate （AQS） or Duroquinone （DQ）, we might not consider the effect of ionic strength, if reference is charged, like Methyl Viologen （MV²⁺）, we must consider the effect of ionic strength. In addition, using the theory of Marcus electron transfer, qualitatively to discuss the main factor which affects the reaction rate of electron transfer, that is: solvation energy of reorientation. So, if not consider the effect of ionic strength to some case, but necessarily to keep the unity of the case.