Abstract
A general oligosaccharide acid hydrolysis method, amenable to electrospray ionization mass spectrometry (ESI-MS), is described that allows for hydrolysis of glycosidic bonds for both hexose- and N-acetylhexosamine-containing oligosaccharides. The partial acid hydrolysis of oligosaccharides is obtained by using an acid-exchange resin as the acid catalyst. A ladder sequence of the glycan is produced in solution that is directly analyzed by ESI tandem mass spectrometry, employing both ion trap and Fourier transform ion cyclotron resonance mass spectrometers, to provide sequence and linkage information. Unlike traditional acid hydrolysis procedures, there is minimal degradation of monosaccharide residues or deacetylation of N-acetylhexosamines by employing this technique. It is further demonstrated that the stereochemistry of the released monosaccharides and the anomeric configuration within disaccharides is determined by direct derivatization of the hydrolysate with Zn(dien)-Cl2 followed by ESI-MS/MS.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
