haemophilus influenzae type b capsular polysaccharide [ repeating unit , leads to 3 ) -beta-d-ribf- ( 1 leads to 1 ) -d-ribol-5- ( po2h leads to ] was partially hydrolyzed with hcl to give oligosaccharides that were isolated by size-exclusion chromatography , and then characterized by 31p- and 13c-n.m.r.-spectral and chemical methods , in order to determine the end-group composition and , hence , the number-average chain-length ( l ) .
C0032594
polysaccharide
C0028959
oligosaccharides