Objective: In this study, analysis of gemifloxacin in pharmaceutical preparations was performed in the presence of 4-bromomethyl-7-methoxycoumarin reagent and dibenzo-18-crown-6 ether catalyst, by high-performance liquid ...

Objective: Two simple, rapid and sensitive methods were developed for determination of Erdosteine (ERD) in pure form as well as in their pharmaceutical formulations. Methods: The methods were based on formation of colored ...