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  4. MALDI-TOF-CID for the microstructure elucidation of polymeric hydrolysable tannins
 
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2013
Journal Article
Title

MALDI-TOF-CID for the microstructure elucidation of polymeric hydrolysable tannins

Abstract
High molar mass wood tannin extracts are complex mixtures that are distributed in both molar mass and chemical composition. Hydrolysable tannins from tara, Turkey gall, and chestnut woods were analyzed and compared using matrix-assisted laser desorption/ionization time-of-flight (MALDI-TOF) mass spectrometry. Although MALDI-TOF MS reveals the oligomer structure of the tannins, this method cannot distinguish between isomers with isobaric masses and, therefore, ambiguous structural assignments were made in a number of cases. To determine the actual microstructures present, MALDI-TOF-CID (collision induced dissociation) experiments were conducted. MALDI-TOF-CID enables monomer sequence determination and positive assignments of isobaric structures can be made.
Author(s)
Radebe, Nonhlanhla
Rode, Karsten  
Fraunhofer-Institut für Betriebsfestigkeit und Systemzuverlässigkeit LBF  
Pizzi, A.
ENSTIB-LERMAB, University of Lorraine
Giovando, S.
CRCF (SILVA TEAM)
Pasch, Harald
University of Stellenbosch
Journal
Journal of applied polymer science  
DOI
10.1002/app.38156
Language
English
Fraunhofer-Institut für Betriebsfestigkeit und Systemzuverlässigkeit LBF  
Keyword(s)
  • polymer

  • microstructure

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