Quantitative mapping of the N-linked sialyloligosaccharides of recombinant erythropoietin: combination of direct high-performance anion-exchange chromatography and 2-aminopyridine derivatization. (1992)

Rice K, Takahashi N, Namiki Y, Tran A, Lisi P, Lee Y
Anal Biochem, 1992 vol.206:278-287

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