From Bioblast
Description
Phosphorescence is a similar phenomenon to fluorescence. However, instead of the electron returning to its original energy state following excitation, it decays to an intermediate state (with a different spin value) where it can remain for some time (minutes or even hours) before decaying to its original state.
Abbreviation: n.a.
Reference: Wikipedia (2011): βPhosphorescenceβ.
MitoPedia methods:
Fluorometry,
Spectrophotometry