A. Comparing the fragments arising from pronase digestion of [9-3H] Sialyl tagged glycoproteins by Biogel P6 chromatography: a) MN Glycophorin A; b) GlyCAM-1; c) Human placental glycoproteins; d) bovine casein macroglycopeptide (MGP); e) Cowper's gland mucin (CGM) and f) human haptoglobin B. Biogel P6 chromatography of [9-3H]sialylated products arising from mild alkaline borohydride treatment of various glycoconjugates. a) HCGβ, b) MN Glycophorin A, c) GlyCAM-1, d) CD43, e) Human placental glycoproteins (HPG), f) bovine casein macroglycopeptide (MGP) g) Cowper's gland mucin (CGM) and h) human haptoglobin.