Results 301 to 310 of about 471,738 (360)

Standardizing GC–MS metabolomics

Journal of Chromatography B, 2008
Metabolomics being the most recently introduced "omic" analytical platform is currently at its development phase. For the metabolomics to be broadly deployed to biological and clinical research and practice, issues regarding data validation and reproducibility need to be resolved.
Harin, Kanani, Panagiotis K, Chrysanthopoulos, Maria I, Klapa   +2 more
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Untargeted GC-MS Metabolomics

2018
Untargeted metabolomics refers to the high-throughput analysis of the metabolic state of a biological system (e.g., tissue, biological fluid, cell culture) based on the concentration profile of all measurable free low molecular weight metabolites. Gas chromatography-mass spectrometry (GC-MS), being a highly sensitive and high-throughput analytical ...
Matthaios-Emmanouil P, Papadimitropoulos, Catherine G, Vasilopoulou, Christoniki, Maga-Nteve, Maria I, Klapa   +3 more
openaire   +2 more sources

Isotopomer Analysis Using GC-MS

Metabolic Engineering, 1999
Knowledge of the complete isotopomer distribution represents the ultimate amount of information on the labeling pattern of a metabolite. One technique for measuring the isotopomer distributions is the analysis of the multiplet intensities arising from the 13C-13C couplings in NMR spectroscopy.
B, Christensen, J, Nielsen
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Archaeological wood characterisation by PY/GC/MS, GC/MS, NMR and GPC techniques

Microchemical Journal, 2007
Abstract The chemical characterisation of waterlogged archaeological wood is of paramount importance in terms of understanding not only the degradation processes of wood in artistic and archaeological objects but also the development of consolidation and conservation procedures.
M. P. COLOMBINI, M. ORLANDI, MODUGNO, FRANCESCA, E. L. TOLPPA, M. SARDELLI, L. ZOIA, C. CRESTINI   +6 more
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Exploring Metabolome with GC/MS

2013
Abstract The rapidly expanding field of metabolomics has been driven by major advances in analytical tools such as mass spectrometry and the corresponding hyphenated methods such as gas chromatography (GC–MS) but also in chemometrics and bioinformatics. The metabolomic field has been mainly developed in plant sciences and GC/MS was applied very early
Jousse, Cyril, Pujos-Guillot, Estelle
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High-speed GC-MS

Mass Spectrometry Reviews, 1998
no ...
Leclercq, P.A., Cramers, C.A.M.G.
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GC‐MS rehabilitiert Absinth

Nachrichten aus der Chemie, 2009
AbstractAbsinth, umgangssprachlich grüne Fee genannt, hat den Ruf eines anregenden, stimulierenden bis inspirierenden Kultgetränks. Bisher war die These verbreitet, dass der bicyclische Monoterpen‐ Keton‐Aromastoff Thujon der Wermutspirituose zu diesen Wirkungen verhelfe. Dies hat die analytische Chemie jetzt widerlegt.
Dirk Lachenmeier, Thomas Kuballa
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2014
The fast pyrolysis of biomass is considered as an attractive process for the thermochemical conversion of lignocellulosic biomass into liquids, gases and solids. The yield of liquid product, also known as bio-oil, and its quality can vary considerably, depending on the type of biomass, because of their different composition.
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Sauber ins GC/MS

Nachrichten aus der Chemie, 2010
AbstractUm Pestizidrückstände in Obst und Gemüse zu analysieren, ist eine Extraktion mit anschließender GC/MS‐Analyse die Methode der Wahl. Die Rohextrakte enthalten aber meist noch schwer verdampfbare Bestandteile. Die Lösung des Problems: ein zwischengeschalteter automatisierter Reinigungsschritt.
openaire   +1 more source

Characteristic fingerprints and volatile flavor compound variations in Liuyang Douchi during fermentation via HS-GC-IMS and HS-SPME-GC-MS

Food Chemistry, 2021
Pao Li, Liwen Jiang, Yang Liu
exaly