partial anodic (cathodic) current

When a single electrochemical reaction occurs at an electrode (i.e. all other electrochemical reactions may be neglected):

$Math - e$

where $Math - text$ is the total current, $Math - text$ is the positive partial anodic current and $Math - text$ is the negative partial cathodic current. When more than one reaction is significant the reactions may be numbered and the numbers used as subscripts: $Math - text$ , $Math - text$ , $Math - text$ , etc. Then:

$Math - e$

Source:

PAC, 1974, 37, 499 (Electrochemical nomenclature) on page 512