Sample :
1. Xanthine
2. Theobromine
3. Theophylline
4. Caffeine
Column : Shodex RSpak DS-613 (6.0mmID*150mm) Eluent : H2O/CH3CN=88/12 Flow rate : 1.0mL/min Detector : UV(254nm) Column temp. : 40°C
Sample :
1. Xanthine
2. Theobromine
3. Theophylline
4. Caffeine
Column : Shodex RSpak DS-613 (6.0mmID*150mm) Eluent : H2O/CH3CN=88/12 Flow rate : 1.0mL/min Detector : UV(254nm) Column temp. : 40°C