Resolution of twelve sialyloligosaccharides with increasing concentrations of the organic modifier methanol. The running buffer consisted of 200 mM NaH2PO4 (pH 7.05) containing up to 50% MeOH as an organic modifier. 1, MSMFLNnH; 2, MSLNnH I; 3, MSMFLNH I; 4, SLNFP II; 5, LST b; 6, LST c; 7, LST a; 8, DSMFLNH; 9, 3'-S-3-FL; 10, 6'-SL; 11, 3'-SL; 12, DSLNT.