Results 11 to 20 of about 17,026 (247)

Region of interest selection in heterogeneous digital image: Wine age prediction by comprehensive two-dimensional gas chromatography [PDF]

open access: yesCurrent Research in Food Science
This study integrates genetic algorithm (GA) with partial least squares regression (PLSR) and various variable selection methods to identify impactful regions of interest (ROI) in heterogeneous 2D chromatogram images for predicting wine age.
Nemanja Koljančić   +5 more
doaj   +2 more sources

Frontier review on comprehensive two-dimensional gas chromatography for measuring organic aerosol

open access: yesJournal of Hazardous Materials Letters, 2021
Organic aerosol (OA) is a key component of atmospheric fine particles and can be composed of thousands of organic species, creating an analytical challenge to separate and identify such highly complex mixtures.
Zhaojin An   +5 more
doaj   +1 more source

Comprehensive two‐dimensional gas chromatography— A discussion on recent innovations

open access: yesJournal of Separation Science, 2023
Although comprehensive 2‐D GC is an established and often applied analytical method, the field is still highly dynamic thanks to a remarkable number of innovations. In this review, we discuss a number of recent developments in comprehensive 2‐D GC technology.
Nino B. L. Milani   +3 more
openaire   +4 more sources

Development of a Method for the Measurement of Human Scent Samples Using Comprehensive Two-Dimensional Gas Chromatography with Mass Detection

open access: yesSeparations, 2021
Every human body is a source of a unique scent, which can be used for medical or forensic purposes. Human skin scent is a complex mixture of more or less volatile compounds with different chemical and physical properties, which often differ significantly
Petra Pojmanová   +2 more
doaj   +1 more source

Splitter-based Non-cryogenic Artificial Trapping (SNAT): Novel modulation mechanism in comprehensive two dimensional gas chromatography

open access: yesJournal of Chromatography Open, 2022
Splitter-based non-cryogenic artificial trapping (SNAT) modulation approach in comprehensive two dimensional gas chromatography (GC × GC) was developed.
Nuttanee Tungkijanansin, Chadin Kulsing
doaj   +1 more source

Valve-based comprehensive two-dimensional gas chromatography with quadrupole mass spectrometry detection using a porous layer open tubular column in the first dimension

open access: yesJournal of Chromatography Open, 2023
A comprehensive two-dimensional gas chromatography instrument with quadrupole mass spectrometry (GC×GC-qMS) is developed and evaluated, by retrofitting a commercial GC-qMS instrument with a high temperature diaphragm valve (HT-DV) modulator.
Lina Mikaliunaite   +5 more
doaj   +1 more source

Nomenclatura na língua portuguesa em cromatografia multidimensional abrangente Nomenclature for comprehensive multidimensional chromatography in portuguese language

open access: yesQuímica Nova, 2007
Comprehensive Multidimensional Chromatography is a relatively new analytic technique, which is receiving growing attention in many parts of the world, including recently in Brazil.
Carin von Mühlen   +2 more
doaj   +1 more source

Large contribution of non-priority PAHs in atmospheric fine particles: Insights from time-resolved measurement and nontarget analysis

open access: yesEnvironment International, 2022
Polycyclic aromatic hydrocarbons (PAHs), detrimental to human health, are key components contributing to the carcinogenicity of fine particles. The 16 priority PAHs listed by the United States Environment Protection Agency have been studied extensively ...
Zhaojin An   +4 more
doaj   +1 more source

Comparative visualization for comprehensive two-dimensional gas chromatography [PDF]

open access: yesJournal of Chromatography A, 2006
This paper investigates methods for comparing datasets produced by comprehensive two-dimensional gas chromatography (GC x GC). Chemical comparisons are useful for process monitoring, sample classification or identification, correlative determinations, and other important tasks. GC x GC is a powerful new technology for chemical analysis, but methods for
Benjamin V, Hollingsworth   +3 more
openaire   +2 more sources

Caracterização de amostras petroquímicas e derivados utilizando cromatografia gasosa bidimensional abrangente (GCxGC) Characterization of petrochemical samples and their derivatives by comprehensive two-dimensional gas chromatography

open access: yesQuímica Nova, 2006
The goal of this article is to discuss the application of comprehensive two-dimensional gas chromatography (GCxGC) to petrochemical samples. The use of GCxGC for petroleum and petroleum derivatives characterization, through group type analysis, or BTEX ...
Carin von Mühlen   +3 more
doaj   +1 more source

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