DEVELOPMENT AND VALIDATION OF METHODS OF QUANTITATIVE DETERMINATION OF 6,7-DIMETHOXY-4-N-(4-CYANOPHENYL)AMINO-QUINAZOLIN
Method of potentiometric titration has been developed for substance 6,7-dimethoxy-4-N-(4- cyanophenyl)aminoquinazoline. The method was validated and characteristics of accuracy, precision, linearity in the range of the working concentration have been calculated. The validation characteristics are conformed to the acceptable criterias.