Preferred Label : peak current;
IUPAC definition : In linear-sweep voltammetry, triangular-wave voltammetry, cyclic triangular-wave voltammetry,
and similar techniques, the maximum value of the faradaic current due to the reduction
or oxidation of a substance B during a single sweep. This maximum value is attained
after an interval during which the concentration of B at the electrode-solution interface
decreases monotonically, while the faradaic current due to the reduction or oxidation
of B increases monotonically, with time. It is attained before an interval during
which this current decreases monotonically with time because the rate of transport
of B toward the electrode-solution interface is smaller than the rate at which it
is removed from the interface by electrolysis. The term has also been used to denote
the maximum value of the faradaic current attributable to the reduction or oxidation
of an electroactive substance in techniques such as ac polarography, differential
pulse polarography, and derivative polarography. However, these techniques give curves
that arise in ways different from that cited above, and the terms summit, summit current,
and summit potential are therefore recommended for use in connection with such techniques.;
Origin ID : P04457;
See also
In linear-sweep voltammetry, triangular-wave voltammetry, cyclic triangular-wave voltammetry,
and similar techniques, the maximum value of the faradaic current due to the reduction
or oxidation of a substance B during a single sweep. This maximum value is attained
after an interval during which the concentration of B at the electrode-solution interface
decreases monotonically, while the faradaic current due to the reduction or oxidation
of B increases monotonically, with time. It is attained before an interval during
which this current decreases monotonically with time because the rate of transport
of B toward the electrode-solution interface is smaller than the rate at which it
is removed from the interface by electrolysis. The term has also been used to denote
the maximum value of the faradaic current attributable to the reduction or oxidation
of an electroactive substance in techniques such as ac polarography, differential
pulse polarography, and derivative polarography. However, these techniques give curves
that arise in ways different from that cited above, and the terms summit, summit current,
and summit potential are therefore recommended for use in connection with such techniques.
