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Improved MALDI-TOF-MS analysis of partially depolymerised methyl cellulose by reducing end derivatisation

Momcilovic, Dane LU ; Brinkmalm, Gunnar ; Wittgren, Bengt and Wahlund, Karl-Gustav LU (2002) Proceedings - 50th ASMS Conference on Mass Spectrometry and Allied Topics p.421-422
Abstract
The depolymerized methyl cellulose was analyzed, using improved MALDI-TOF-MS by reducing the end derivatization. The methyl cellulose was depolymerized to give methylated oligo-(1->4)-β-D-anhydroglucoses (M-oligo-AG). To reduce the errors during measurement of degree of substitution (DS), M-oligo-AG was derivatized with Girard's T reagent performed on an equimolar mixture of maltooligosaccharides. The GT-derivatized M-oligo-AG (GT-M-oligo-AG) formed singly charged molecular ions with peaks at m/z values 91 higher than the corresponding peaks of M-oligo-AG. The results show that for GT-M-oligo-AG the relative signal intensities for DP=1 and 2 were increased significantly.
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author
; ; and
organization
publishing date
type
Chapter in Book/Report/Conference proceeding
publication status
published
subject
keywords
Methyl cellulose, Matrix-assisted laser desorption/ionization (MALDI), Time-of flight (TOF) mass spectrometry, Maltooligosaccharides
host publication
Proceedings 50th ASMS Conference on Mass Spectrmetry and Allied Topics
pages
421 - 422
publisher
American Society for Mass Spectrometry, Santa Fe, NM, 87505, United States
conference name
Proceedings - 50th ASMS Conference on Mass Spectrometry and Allied Topics
conference location
Orlando, FL, United States
conference dates
2002-06-02 - 2002-06-06
external identifiers
  • scopus:2442684602
language
English
LU publication?
yes
additional info
The information about affiliations in this record was updated in December 2015. The record was previously connected to the following departments: Analytical Chemistry (S/LTH) (011001004)
id
2945fa3b-48e5-4531-8453-2bf6e9e6a081 (old id 611749)
date added to LUP
2016-04-04 12:08:05
date last changed
2022-03-23 18:42:16
@inproceedings{2945fa3b-48e5-4531-8453-2bf6e9e6a081,
  abstract     = {{The depolymerized methyl cellulose was analyzed, using improved MALDI-TOF-MS by reducing the end derivatization. The methyl cellulose was depolymerized to give methylated oligo-(1->4)-β-D-anhydroglucoses (M-oligo-AG). To reduce the errors during measurement of degree of substitution (DS), M-oligo-AG was derivatized with Girard's T reagent performed on an equimolar mixture of maltooligosaccharides. The GT-derivatized M-oligo-AG (GT-M-oligo-AG) formed singly charged molecular ions with peaks at m/z values 91 higher than the corresponding peaks of M-oligo-AG. The results show that for GT-M-oligo-AG the relative signal intensities for DP=1 and 2 were increased significantly.}},
  author       = {{Momcilovic, Dane and Brinkmalm, Gunnar and Wittgren, Bengt and Wahlund, Karl-Gustav}},
  booktitle    = {{Proceedings 50th ASMS Conference on Mass Spectrmetry and Allied Topics}},
  keywords     = {{Methyl cellulose; Matrix-assisted laser desorption/ionization (MALDI); Time-of flight (TOF) mass spectrometry; Maltooligosaccharides}},
  language     = {{eng}},
  pages        = {{421--422}},
  publisher    = {{American Society for Mass Spectrometry, Santa Fe, NM, 87505, United States}},
  title        = {{Improved MALDI-TOF-MS analysis of partially depolymerised methyl cellulose by reducing end derivatisation}},
  year         = {{2002}},
}