Chemiluminescence (CL) reactions were studied in a model system based
on a phase diagram which was composed of Triton X-100, a-butanol, tolu
ene, and water. The CL reaction was achieved by using trichlorophenyl
oxalate, H2O2, and perylene as the fluorophore. The intensity of light
(l(0)) and t(1/2) were found to depend on both reactant concentration
s and phase composition. The CL reaction was conducted in W/O microemu
lsions, and an inverse relation between I-0 and t(1/2) was found. Thes
e two parameters could also indicate the transition from a W/O emulsio
n to a W/O microemulsion. The effect of medium polarity was evaluated
by fluorescence, absorbance, and chemiluminescence spectra.