Sample :
1. Chlorpheniramine
2. Monodesmethyl-chlorpheniramine
3. Didesmethyl-chlorpheniramine
Column : Shodex ORpak CDBS-453 (4.6mmID*150mm)
Eluent : 10% CH3CN 90% (1.0% CH3COOH + 0.2M NaCl) in H2O
Flow rate : 0.5mL/min
Detector : UV(254nm)
Column temp. : 30°C
Courtesy of Dr. Sakurai, Tohoku Cllage of Pharmacy