The micellization process of the local anaesthetic carbisocainium chloride in water was investigated by two spectral methods
using the probe pyrene. First, the absorption spectroscopy in UV/VIS region was based on studying changes in characteristic
absorption spectrum of pyrene in presence of surfactant. The resultant plot of the sum of absorbances for all the major pyrene
peaks as a function of the total surfactant concentration shows, around the critical micellar concentration, a typical sigmoidal
increase. The fluorescence emission spectroscopy in UV/VIS region of spectrum by the probe pyrene, second procedure, was applied
for determination of the cmc from the measurements of the pyrene