SPECTROFLUORIMETRIC METHOD FOR IMPURITIES DETECTION IN TUNGSTEN TETRAPHENYL-PORPHYRIN

摘要

A spectrofluorimetric method for impurities detection in tungsten tetraphenyl-porphyrin is presented in this paper. The elaborated spectrofluorimetric method for the determination of the TPP impurity from the TPPWCl_4 samples is a sensitive method for small concentration ranges (less than 1 x 10~(-6) M), where the spectrophotometric absorption method does not lead to reproducible results and has high errors. The method is easily accessible and yields valuable results in respect of the stability of the complex with tungsten of TPP.