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Results 11 to 20 of about 29,482 (149)

Comparison of GC/time-of-flight MS with GC/quadrupole MS for halocarbon trace gas analysis [PDF]

Atmospheric Measurement Techniques, 2015
We present the application of time-of-flight mass spectrometry (TOF MS) for the analysis of halocarbons in the atmosphere after cryogenic sample preconcentration and gas chromatographic separation.
J. Hoker, F. Obersteiner, H. Bönisch, A. Engel +3 more
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Fluxome analysis using GC-MS

Microbial Cell Factories, 2007
Fluxome analysis aims at the quantitative analysis of in vivo carbon fluxes in metabolic networks, i. e. intracellular activities of enzymes and pathways.
Wittmann Christoph
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Optimising a urinary extraction method for non-targeted GC–MS metabolomics

Scientific Reports, 2023
Urine is ideal for non-targeted metabolomics, providing valuable insights into normal and pathological cellular processes. Optimal extraction is critical since non-targeted metabolomics aims to analyse various compound classes.
Cara Olivier, Bianca Allen, Laneke Luies
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Determination of 9 halogenated alkanes in toothpaste by GC⁃MS

Shanghai yufang yixue, 2023
ObjectiveTo establish a GC-MS method for the detection of 9 halogenated alkanes in toothpastes.MethodsVarious brands of toothpastes on the market were collected as the samples. Methanol was used as the extraction solution.
PENG Qian, LIN Xi, WU Linying, XUAN Dongliang +3 more
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Flavor volatiles evolution of Chinese horse bean-chili-paste during ripening, accessed by GC×GC-TOF/MS and GC-MS-olfactometry

International Journal of Food Properties, 2020
The evolution of volatile compounds during the ripening of Chinese horse bean-chili-paste (CHCP) was investigated in this study. GC×GC-TOF/MS allowed an identification of 748 volatiles in three CHCP samples, respectively, ripened for 3 months (M3), 12 ...
Yunhao Lu +5 more
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Drying Enhances Signal Intensities for Global GC–MS Metabolomics

Metabolites, 2019
We report here that a straightforward change of the standard derivatization procedure for GC–MS metabolomics is leading to a strong increase in metabolite signal intensity.
Manuel Liebeke, Erik Puskás
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Characterization of the key aroma compounds in a novel Qingke baijiu of Tibet by GC-MS, GC×GC-MS and GC-O-MS

Food Chemistry Advances
As a local specialty of Tibet, Qingke baijiu (QB) is made from highland barley, and is referred to as the manufacturing process of light-aroma baijiu. Using highland barley in the Qu-making and the high-temperature stacking process of sauce-aroma baijiu ...
Yahui Zhao +13 more
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Badania pozostałości pestycydów w żywności pochodzenia roślinnego przy użyciu metody QuEChERs i technik chromatograficznych GC i HPLC z detektorem spektrometrii mas MS i MS/MS

Agronomy Science, 2019
W celu zapewnienia prawidłowych i wiarygodnych wyników oznaczenia pozostałości pestycydów w żywności pochodzenia roślinnego duże znaczenie odgrywają dzisiaj specyficzne i selektywne metody analityczne, do których należy metoda QuEChERS (quick easy cheap ...
GRAŻYNA MARIA KOWALSKA, RADOSŁAW JAN KOWALSKI +1 more
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Detection and Analysis of VOCs in Cherry Tomato Based on GC-MS and GC×GC-TOF MS Techniques

Foods
Volatile organic compounds (VOCs) play a significant role in influencing the flavor quality of cherry tomatoes (Solanum lycopersicum var. cerasiforme).
Sihui Guan +9 more
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Utility of Comprehensive GC×GC Gas Chromatography in Finding Varietal Markers among Volatile Compounds in Non-Aromatic Red Wines

Agronomy, 2022
To investigate the utility of comprehensive GC×GC gas chromatography metabolomics in finding varietal markers among volatile compounds in non-aromatic red wines, representative samples of the two most important Croatian monovarietal red wines, Plavac ...
Igor Lukić, Silvia Carlin, Urska Vrhovsek +2 more
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gas chromatography
gc–ms
biotechnology