Retardation time spectra computed from complex compliance functions

This work describes the calculation of retardation time spectra by minimization of the square of the differences between experimental compliance results and those recalculated from the spectra. Spectra were computed taking analytical complex dielectric results as the basis of the minimization process. Comparison of the spectra computed from both the complex dielectricpermittivity and the dielectric loss with those calculated analytically shows that minimization methods based on complex dielectricpermittivity data are more accurate than those based only on loss dielectric results.