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If half wave potential value (E1/2) of two electroactive species are too close , how can...

If half wave potential value (E1/2) of two electroactive species are too close , how can these be separated ??

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Half wave potential (E1/2) is the potential at which the current is equal to one half of the limiting current and is closely related to the standard potential fo the half-reaction but usually not identical to that constant therefore, if half wave potential (E1/2) of two electroactive species are too close then we find limiting current which is generally proportional to the concentration of elctroactive species thus spearation would be easier and also under fixed condition it is called diffustion current (id).

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