Ammonio Methacrylate Copolymers are additives for pharmaceutical coatings, were analyzed using an Aqueous/Organic (multi-solvent use) SEC column, Asahipak GF-510 HQ.
Sample : 0.2% each, 20μL
Ammonio methacrylate copolymer
Type A (EUDRAGIT® RL 100)
Type B (EUDRAGIT® RS 100)
Columns : Shodex Asahipak GF-510 HQ (7.5mmI.D. x 300mm) Eluent : 50mM LiCl in C2H5OH/H2O=95/5 Flow rate : 0.5mL/min Detector : Shodex RI Column temp. : 40℃
