用这个柱子和条件:
Column Cogent Bidentate C18™
Catalog No. 40018-7.5R
Dimensions 75mm x 4.6mm id
Flow Rate 1ml/minute
Mobile Phase 100% Aqueous H3PO4
0.05% v/v
Detection UV 255nm
PEAKS
Oxalic Acid
Formic Acid
Acetic Acid
Sodium Azide
Uracil
Fumaric Acid
Propionic Acid