Sample :
1. Gly-Val
2. Phe-Gly
3. Ala-Phe
4. Val-Phe
5. Tyr-Leu
Column : Shodex RSpak DE-613 (6.0mmID*150mm)
Eluent : (A); 0.05% TFA aq./CH3CN=96/4
(B); 0.05% TFA aq./CH3CN=75/25
Linear gradient: 0 to 30min, (A) to (B)
Flow rate : 1.0mL/min
Detector : UV(220nm)
Column temp. : 30°C