Biology; Chemistry and chemical biology; Chemical and biological engineering; Biomedical engineering
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Matrix-Assisted Laser Desorption/Ionization Mass Spectrometric Analysis of Uncomplexed Highly Sulfated Oligosaccharides using Ionic Liquid Matrices. T.N. Laremore, S. Murugesan, T.-J. Park, F.Y. Avci, D. V. Zagorevski, R. J. Linhardt, Analytical Chemistry, 78, 1774-1779, 2006.
Direct UV matrix-assisted laser desorption/ionization (MALDI) mass spectrometric analysis of uncomplexed, underivatized, highly sulfated oligosaccharides has been carried out using ionic liquids as matrices. Under conventionally used MALDI time-of-flight experimental conditions, uncomplexed polysulfated oligosaccharides do not produce any signal. We report that 1-methylimidazolium alpha-cyano-4-hydroxycinnamate and butylammonium 2,5-dihydroxybenzoate ionic liquid matrices allow the detection of picomole amounts of the sodium salts of a disaccharide, sucrose octasulfate, and an octasulfated pentasaccharide, Arixtra. The experimental results indicate that both analytes undergo some degree of thermal fragmentation with a mass loss corresponding to cleavage of O-SO3Na bonds in the matrix upon laser irradiation, reflecting lability of sulfo groups.;
Analytical Chemistry, 78, 1774-1779; 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.
The Linhardt Research Labs.; The Shirley Ann Jackson, Ph.D. Center for Biotechnology and Interdisciplinary Studies (CBIS);
American Chemical Society (ACS)
The Linhardt Research Labs Online Collection; Rensselaer Polytechnic Institute, Troy, NY; Analytical Chemistry; https://harc.rpi.edu/;