Results 61 to 70 of about 75,000 (193)

Model-based peak alignment of metabolomic profiling from comprehensive two-dimensional gas chromatography mass spectrometry

open access: yesBMC Bioinformatics, 2012
Background Comprehensive two-dimensional gas chromatography time-of-flight mass spectrometry (GCxGC/TOF-MS) has been used for metabolite profiling in metabolomics. However, there is still much experimental variation to be controlled including both within-
Jeong Jaesik   +4 more
doaj   +1 more source

A green and sustainable method for Capsicum volatilome investigation by means of headspace solid-phase microextraction combined with flow-modulated two-dimensional gas chromatography-mass spectrometry using hydrogen as carrier gas

open access: yesGreen Analytical Chemistry, 2023
The present research is focused on the development of a green and sustainable analytical method, based on the use of headspace solid-phase microextraction (HS SPME), and hydrogen as carrier gas, within the context of fast flow-modulation comprehensive ...
Micaela Galletta   +4 more
doaj   +1 more source

Artificial intelligence in steam cracking modeling : a deep learning algorithm for detailed effluent prediction [PDF]

open access: yes, 2019
Chemical processes can benefit tremendously from fast and accurate effluent composition prediction for plant design, control, and optimization. The Industry 4.0 revolution claims that by introducing machine learning into these fields, substantial ...
Amghizar, Ismaël   +5 more
core   +1 more source

Shape-shifting molecule behaviour during comprehensive two-dimensional gas chromatography analysis—A review

open access: yesJournal of Chromatography Open
This research considers a number of molecular structural changes that have been reported in gas chromatography (GC), which take place during the chromatographic separation process of a molecule, and leads to an observation of an elevated baseline between
Philip J. Marriott   +4 more
doaj   +1 more source

FASES ESTACIONÁRIAS DE LÍQUIDOS IÔNICOS EM CROMATOGRAFIA GASOSA: FUNDAMENTOS, AVANÇOS RECENTES E PERSPECTIVAS

open access: yesQuímica Nova, 2016
Since their original discovery in 1914, ionic liquids (IL) have been widely examined and explored in chemistry due to their unique physical and chemical properties.
Leandro W. Hantao   +2 more
doaj   +1 more source

Metabolic Profiling of Varronia curassavica Jacq. Terpenoids by Flow Modulated Two-Dimensional Gas Chromatography Coupled to Mass Spectrometry

open access: yesSeparations, 2020
In this study, a metabolomic approach was used to investigate the effect of seasonality on the chemical composition and yield of anti-inflammatory active principle, α-humulene, in the essential oil of three genotypes of Varronia curassavica Jacq ...
Roselaine Facanali   +2 more
doaj   +1 more source

Computerized Olfactronic Identification of Persons Using Comprehensive Two-Dimensional Gas Chromatography with Mass Spectrometry

open access: yesSeparations
This paper demonstrates the possibilities of the computer identification of individuals based on their digitized scent signatures using comprehensive two-dimensional gas chromatography with mass spectrometry. This identification is performed by comparing
Luděk Bouška   +3 more
doaj   +1 more source

Using Comprehensive Two-Dimensional Gas Chromatography to Study the Atmosphere [PDF]

open access: yesJournal of Chromatographic Science, 2010
The atmosphere is a highly complex, highly reactive chemical system. There are a huge variety of emission sources of chemical compounds, both natural and man-made, which have a broad range of reactivities and can be oxidized in the atmosphere to form an even more complicated matrix of oxidation products with a multitude of atmospheric lifetimes.
openaire   +2 more sources

Distributions of brominated organic compounds in the troposphere and lower stratosphere [PDF]

open access: yes, 1999
A comprehensive suite of brominated organic compounds was measured from whole air samples collected during the 1996 NASA Stratospheric Tracers of Atmospheric Transport aircraft campaign and the 1996 NASA Global Tropospheric Experiment Pacific Exploratory
Atlas, EL   +7 more
core   +1 more source

Composition and origin of molecular compounds in the condensate oils of the Dabei gas field, Tarim Basin, NW China

open access: yesPetroleum Exploration and Development, 2019
The Dabei gas field in the Kuqa Depression of the Tarim Basin is the most complex and deep continental condensate gas field in China. Comprehensive two-dimensional gas chromatography-time of flight mass spectrometer (GC×GC-TOFMS) analysis was conducted ...
Guangyou ZHU   +7 more
doaj   +1 more source

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