Výsledky vyhledávání - "Matthew R. Hurt"

Characterization of ionized lignin model compounds with α-O-4 linkages by positive- and negative-ion mode electrospray ionization tandem mass spectrometry based on collision-activated dissociation

Autor: Weijuan Tang, Linan Yang, Matthew R. Hurt, Hilkka I. Kenttämaa, James S. Riedeman, Huaming Sheng, Jinshan Gao

Publikováno v: Rapid communications in mass spectrometry : RCMREFERENCES. 35(8)

RATIONALE The biggest obstacle in the rational conversion of biomass into aromatic chemicals is the identification of unknown compounds in lignin degradation mixtures that are highly complex. As opposed to lignin degradation products with β-O-4 link

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0dd0e16c86793c6d24235eba0cefebf4
https://pubmed.ncbi.nlm.nih.gov/33502053

Zobrazit plný text záznamu

(−)ESI/CAD MSn Procedure for Sequencing Lignin Oligomers Based on a Study of Synthetic Model Compounds with β-O-4 and 5-5 Linkages

Autor: Weijuan Tang, Priya Murria, Linan Yang, Jinshan Gao, Hilkka I. Kenttämaa, Huaming Sheng, Guannan Li, James S. Riedeman, Xin Ma, John J. Nash, Tiffany M. Jarrell, Matthew R. Hurt

Publikováno v: Analytical Chemistry. 89:13089-13096

Seven synthesized G-lignin oligomer model compounds (ranging in size from dimers to an octamer) with 5-5 and/or β-O-4 linkages, and three synthesized S-lignin model compounds (a dimer, trimer, and tetramer) with β-O-4 linkages, were evaporated and

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::297ef0fcb46562308c76b22b6bf45f02
https://doi.org/10.1021/acs.analchem.7b01911

Zobrazit plný text záznamu

Initial Products and Reaction Mechanisms for Fast Pyrolysis of Synthetic G‐Lignin Oligomers with β‐O‐4 Linkages via On‐Line Mass Spectrometry and Quantum Chemical Calculations

Autor: Hanyu Zhu, James S. Riedeman, Matthew R. Hurt, Rakesh Agrawal, Priya Murria, Alex R. Dow, Hilkka I. Kenttämaa, John J. Nash, Huaming Sheng, Ian Klein, Fabio H. Ribeiro, Mahdi M. Abu-Omar, W. N. Delgass, John C. Degenstein, Weijuan Tang

Publikováno v: ChemistrySelect. 2:7185-7193

The products of fast pyrolysis that first leave the hot pyrolysis surface were identified for three G-lignin model compounds, a trimer, a tetramer and a synthetic polymer, all containing β-O-4 linkages, by using a very fast heating pyrolysis probe c

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::1ad0c3789f16123500d5364a4476817b
https://doi.org/10.1002/slct.201700582

Zobrazit plný text záznamu

Mass Spectrometric Studies of Fast Pyrolysis of Cellulose

Autor: Mark S. Carlsen, James S. Riedeman, Hilkka I. Kenttämaa, Mckay W Easton, John C. Degenstein, Fabio H. Ribeiro, Harshavardhan Choudhari, Rakesh Agrawal, John J. Nash, Priya Murria, Linan Yang, Matthew R. Hurt, W. Nicholas Delgass

Publikováno v: European Journal of Mass Spectrometry. 21:321-326

A fast pyrolysis probe/linear quadrupole ion trap mass spectrometer combination was used to study the primary fast pyrolysis products (those that first leave the hot pyrolysis surface) of cellulose, cellobiose, cellotriose, cellotetraose, cellopentao

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::476cfe4ee3417447457f090f6ba0d31f
https://doi.org/10.1255/ejms.1335

Zobrazit plný text záznamu

A synergistic biorefinery based on catalytic conversion of lignin prior to cellulose starting from lignocellulosic biomass

Autor: Hilkka I. Kenttämaa, Sara L. Yohe, Harshavardhan Choudhari, Richard Meilan, Mahdi M. Abu-Omar, Ian Klein, Nathan S. Mosier, Emre Gençer, Basudeb Saha, Rakesh Agrawal, Barron Hewetson, Jeong Im Kim, Matthew R. Hurt, Tiffany M. Jarrell, Clint Chapple, Fabio H. Ribeiro, John C. Degenstein, Trenton H. Parsell, W. Nicholas Delgass

Publikováno v: Green Chemistry. 17:1492-1499

Current biomass utilization processes do not make use of lignin beyond its heat value. Here we report on a bimetallic Zn/Pd/C catalyst that converts lignin in intact lignocellulosic biomass directly into two methoxyphenol products, leaving behind the

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::d55cbfa6612882c86ea6ae465777a17b
https://doi.org/10.1039/c4gc01911c

Zobrazit plný text záznamu

Utilisation of Gas-Phase Ion—Molecule Reactions for Differentiation between Phospho- and Sulfocarbohydrates

Autor: Andrii Piatkivskyi, Matthew R. Hurt, Victor Ryzhov, Yuriy Pyatkivskyy

Publikováno v: European Journal of Mass Spectrometry. 20:177-183

Gas-phase ion-molecule reactions of four boron-containing neutrals were explored as a means for differentiation between isobaric phospho- and sulfocarbohydrates. Phosphorylation and sulfation impose an addition of 80 Da to the molecular mass, so for

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3f62f70e712f30b19d2695b8e4fb77b1
https://doi.org/10.1255/ejms.1270

Zobrazit plný text záznamu

On-Line Mass Spectrometric Methods for the Determination of the Primary Products of Fast Pyrolysis of Carbohydrates and for Their Gas-Phase Manipulation

Autor: Piotr Gawecki, W. Nicholas Delgass, Hilkka I. Kenttämaa, Linan Yang, Rakesh Agrawal, Fabio H. Ribeiro, Nelson R. Vinueza, David J. Borton, John C. Degenstein, Matthew R. Hurt

Publikováno v: Analytical Chemistry. 85:10927-10934

Mass spectrometric methodology was developed for the determination and manipulation of the primary products of fast pyrolysis of carbohydrates. To determine the true primary pyrolysis products, a very fast heating pyroprobe was coupled to a linear qu

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::299161090deb59846bb7bf38757ae287
https://doi.org/10.1021/ac402380h

Zobrazit plný text záznamu

Comparison of the Structures of Molecules in Coal and Petroleum Asphaltenes by Using Mass Spectrometry

Autor: Hilkka I. Kenttämaa, Matthew R. Hurt, Heewon J. Choi, David J. Borton

Publikováno v: Energy & Fuels. 27:3653-3658

Asphaltenes are a complex mixture of aromatic compounds that are present in petroleum and liquefied coal and have unknown molecular structures. Determination of the molecular structures of asphaltenes is greatly hindered by the extreme complexity of

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::9a783e23d55e012b61f7a0e676de3926
https://doi.org/10.1021/ef302024z

Zobrazit plný text záznamu

Development of a High-Throughput Laser-Induced Acoustic Desorption Probe and Raster Sampling For Laser-Induced Acoustic Desorption/Atmospheric Pressure Chemical Ionization

Autor: Alex R. Dow, Hilkka I. Kenttämaa, Garth J. Simpson, David J. Borton, Jeremy T. Madden, Matthew R. Hurt, Lucas M. Amundson

Publikováno v: Analytical Chemistry. 85:5720-5726

Laser-induced acoustic desorption (LIAD) was recently coupled to atmospheric pressure chemical ionization (APCI) and shown to be of great utility for the analysis of a variety of thermally labile nonpolar analytes that are not amenable to ionization

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::436dda4b7e925ebe25cd1b08c43c22ea
https://doi.org/10.1021/ac4000333

Zobrazit plný text záznamu

Separation of Asphaltenes by Reversed-Phase Liquid Chromatography with Fraction Characterization

Autor: Hilkka I. Kenttämaa, David J. Borton, Neil D. Danielson, Thomas N. Loegel, Matthew R. Hurt

Publikováno v: Energy & Fuels. 26:2850-2857

The use of a 4.6 × 250 mm, 5 μm cyanopropyl column is effective for the liquid chromatography (LC) separation of asphaltenes with sequential ultraviolet (UV) and florescence detection. The mobile-phase composition is an optimized gradient from acet

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::064ec75565c5e9c00534e15ac68a89e9
https://doi.org/10.1021/ef201919x

Zobrazit plný text záznamu

Vyhledávací nástroje:

Upřesnit hledání