Molecular characterization of hydrolyzed cationized nanocrystalline cellulose, cotton cellulose and softwood kraft pulp using high resolution 1D and 2D NMR

2011 ◽  
Vol 85 (4) ◽  
pp. 738-746 ◽  
Author(s):  
Hanna de la Motte ◽  
Merima Hasani ◽  
Harald Brelid ◽  
Gunnar Westman
Keyword(s):  
High Resolution ◽  
Molecular Characterization ◽  
Kraft Pulp ◽  
2D Nmr ◽  
Nanocrystalline Cellulose ◽  
Cotton Cellulose ◽  
Softwood Kraft Pulp

scholarly journals 3-Alkylpyridinium salts from Haplosclerida marine sponges: Isolation, structure elucidations, and biosynthetic considerations

2009 ◽  
Vol 81 (6) ◽  
pp. 1033-1040 ◽  
Author(s):  
Rémi Laville ◽  
Philippe Amade ◽  
Olivier P. Thomas
Keyword(s):  
High Resolution ◽  
Mass Spectra ◽  
Biosynthetic Pathway ◽  
2D Nmr ◽  
Marine Sponges ◽  
Structure Characterization ◽  
Ionization Mass ◽  
Family Structures ◽  
Resolution Electron

A very little studied marine sponge Callyspongia sp. collected off the coast of Martinique was chemically investigated. The study led to the isolation and structure characterization of two new 3-alkylpyridinium salts which belonged to the recently isolated pachychaline family. Structures were elucidated by 1D, 2D NMR and detailed high-resolution electron spray ionization mass spectra (HRESIMS)-MS studies. The use of HRESIMS-MS studies proved to be highly efficient to identify two other close derivatives in a mixture. Finally, these studies allowed us to propose a general biosynthetic pathway leading to important 3-alkylpyridinium salts.

Characterization of the cellulosic residues from lithium chloride/N,N-dimethylacetamide dissolution of softwood kraft pulp

1997 ◽  
Vol 32 (1) ◽  
pp. 57-63 ◽  
Author(s):  
Elisabeth Sjöholm ◽  
Kristina Gustafsson ◽  
Bert Pettersson ◽  
Anders Colmsjö
Keyword(s):  
Lithium Chloride ◽  
Kraft Pulp ◽  
Softwood Kraft Pulp

scholarly journals Molecular Characterization of Strongly and Weakly Interfacially Active Asphaltenes by High-Resolution Mass Spectrometry

2020 ◽  
Vol 34 (11) ◽  
pp. 13966-13976
Author(s):  
Dewi A. Ballard ◽  
Martha L. Chacón-Patiño ◽  
Peiqi Qiao ◽  
Kevin J. Roberts ◽  
Robert Rae ◽  
...  
Keyword(s):  
Mass Spectrometry ◽  
High Resolution ◽  
Molecular Characterization ◽  
High Resolution Mass Spectrometry ◽  
High Resolution Mass ◽  
Resolution Mass
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