Matrix-Assisted Laser Desorption/Ionization Mass Spectrometric Analysis of Uncomplexed Highly Sulfated Oligosaccharides using Ionic Liquid Matrices

Authors
Laremore, Tatiana N.
Murugesan, Saravanababu
Park, Tae Joon
Avci, Fikri Y.
Zagorevski, Dmitri V.
Linhardt, Robert J.
ORCID
https://orcid.org/0000-0003-2219-5833
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Issue Date
2006-03-15
Keywords
Biology , Chemistry and chemical biology , Chemical and biological engineering , Biomedical engineering
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Full Citation
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.
Abstract
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.
Description
Analytical Chemistry, 78, 1774-1779
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Department
The Linhardt Research Labs.
The Shirley Ann Jackson, Ph.D. Center for Biotechnology and Interdisciplinary Studies (CBIS)
Publisher
American Chemical Society (ACS)
Relationships
The Linhardt Research Labs Online Collection
Rensselaer Polytechnic Institute, Troy, NY
Analytical Chemistry
https://harc.rpi.edu/
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