Data code:
Trp; Put; Cad; His; Tyr; Spd; 1,6-diaminohexane
A;30mM ammonium formate in water (pH4.0)、B;acetonitrile、
Gradient ; 0 min (B 90%)→12 min(B 40%)→14 min(B 40%) →16 min(B 90%)