グアニンとトリプトファンの分離を3種類のカラムRSpak DM-614、NN-814、DE-613を用いて行いました。


Sample : 1. Guanine, 2. Tryptophan

Columns     : (left);   Shodex RSpak DM-G 4A (4.6 mm I.D. x 10 mm)
                        + DM-614 (6.0 mm I.D. x 150 mm)
              (Center); Shodex RSpak NN-G (6.0 mm I.D. x 50 mm)
                        + NN-814 (8.0 mm I.D. x 250 mm)
              (Right);  Shodex RSpak DE-G 4A (4.6 mm I.D. x 10 mm)
                        + DE-613 (6.0 mm I.D. x 150 mm)
Eluent      : (Left);   0.3 M K2HPO4(pH8.6)  
              (Center); 0.1 M NaH2PO4(pH3.0 adjusted by H3PO4)
              (Right);  0.23 M K2HPO4 aq./CH3OH=80/20
Flow rate   : (Left); 0.8 mL/min, (Center); 1.0 mL/min, (Right); 0.8 mL/min
Detector    : (Left); UV(278 nm), (Center); RI, (Right); UV(278 nm)
Column temp.: (Left); 30 ℃, (Center); 50 ℃, (Right); 30 ℃