In this study, the emulsion homopolymerization system containing vinyl acetate, potassium persulfate, a new cationic polymeric surfactant and water was studied
The steam-thermal method for refinery of highly-viscous oils and the process of propane-butane liquid extraction have been implemented for production of the imp
A simple, rapid and rugged RP-HPLC method was developed for evaluation and quantification of impurities present in Pirfenidone (PFD) drug substance. Impurities