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    Improved Matrix-Assisted Laser Desorption/Ionization Mass Spectrometric Detection of Glycosaminoglycan Disaccharides as Cesium Salts

    Author
    Laremore, Tatiana N.; Linhardt, Robert J.
    ORCID
    https://orcid.org/0000-0003-2219-5833
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    IMPROVED MATRIX-ASSISTED LASER DESORPTION IONIZATION MASS.pdf (833.0Kb)
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    Date Issued
    2007-04-04
    Subject
    Biology; Chemistry and chemical biology; Chemical and biological engineering; Biomedical engineering
    Degree
    Terms of Use
    In Copyright : this Item is protected by copyright and/or related rights. You are free to use this Item in any way that is permitted by the copyright and related rights legislation that applies to your use. For other uses you need to obtain permission from the rights-holder(s). https://rightsstatements.org/page/InC/1.0/;
    Full Citation
    Improved Matrix-Assisted Laser Desorption/Ionization Mass Spectrometric Detection of Glycosaminoglycan Disaccharides as Cesium Salts, T.N. Laremore, R.J. Linhardt, Rapid Communications in Mass Spectrometry, 21, 1315-1320, 2007.
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    URI
    https://hdl.handle.net/20.500.13015/5209; https://doi.org/10.1002/rcm.2964
    Abstract
    A new method is presented for the identification of oligosaccharides obtained by enzymatic digestion of hyaluronan (HA) with bacterial hyaluronidase (E.C. 4.2.2.1, from Streptomyces hyalurolyticus) using matrix assisted laser desorption ionization-time of flight mass spectrometry (MALDI-TOFMS). Mixtures containing HA oligosaccharides of tetrasaccharide (4-mer)–34-mer were analyzed using this method. The carboxyl groups of the glucuronate residues in the prepared HA oligomers, were modified as the acidic form (—COOH), sodium salts (—COONa), organic ammonium salts, or methylesters before MALDI-TOFMS measurement. Among these samples, the methylester form of glucuronate residues in HA oligosaccharides, prepared by methylation using trimethylsilyl diazomethane, afforded high sensitivity for spectra. This simple modification method for carboxyl group methylation of acidic polysaccharides [Hirano et al., Carbohydr. Res., 340, (2005) 2297–2304] provides samples suitable for MALDI-TOF mass spectrometric analysis throughout a significantly enhanced range of masses.;
    Description
    Rapid Communications in Mass Spectrometry, 21, 1315-1320; Note : if this item contains full text it may be a preprint, author manuscript, or a Gold OA copy that permits redistribution with a license such as CC BY. The final version is available through the publisher’s platform.
    Department
    The Linhardt Research Labs.; The Shirley Ann Jackson, Ph.D. Center for Biotechnology and Interdisciplinary Studies (CBIS);
    Publisher
    Wiley
    Relationships
    The Linhardt Research Labs Online Collection; Rensselaer Polytechnic Institute, Troy, NY; Rapid Communications in Mass Spectrometry; https://harc.rpi.edu/;
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    A full text version is available in DSpace@RPI;
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