Results 21 to 30 of about 3,509,521 (288)

Estimating European volatile organic compound emissions using satellite observations of formaldehyde from the Ozone Monitoring Instrument [PDF]

, 2010
Emission of non-methane Volatile Organic Compounds (VOCs) to the atmosphere stems from biogenic and human activities, and their estimation is difficult because of the many and not fully understood processes involved.
P. I. Palmer, Chance, K., K. Chance, G. Visconti, Curci, G., Palmer, P. I., T. P. Kurosu, G. Curci, Kurosu, T. P., Palmer, Paul, Visconti, G.   +10 more
core   +2 more sources

Analysing volatile organic compounds (VOCs) with SERS by bubbling into colloidal nanoparticles.

Analyst
A simple and novel surface-enhanced Raman scattering (SERS) technique has been developed for the detection of volatile organic compounds (VOCs) by bubbling VOCs directly into colloidal nanoparticles and measuring with a portable Raman spectrometer.
Colleran A, Gotts N, Murray S, Goodacre R.   +3 more
europepmc   +2 more sources

Efficacité des Composés Organiques Volatils fongiques (synthèse bibliographique)

Biotechnologie, Agronomie, Société et Environnement, 2020
Efficacy of fungi Volatile Organic Compounds. A review Introduction. Excessive use of chemical fungicides continues to drive research towards environmentally friendly and innovative alternatives for crop protection. Literature.
Amine Kaddes, Marie-Laure Fauconnier, Khaled Sassi, Chadi Berhal, B. Nasraoui, M. Haïssam Jijakli   +5 more
doaj   +1 more source

HS-GC-IMS analysis and fingerprint study of volatile organic compounds in five species medicinal and edible Chrysanthemum morifolium Ramat.

Shipin yu jixie, 2022
Objective: To understand the difference of cumulative content and species of volatile organic compounds （VOCs） in five different species of Chrysanthemum morifolium Ramat.. Methods: In this study, five different species of Chrysanthemum morifolium Ramat.,
DING Yun-long, WANG Hao-dong, TANG Guo-wei, TIAN Xing   +3 more
doaj   +1 more source

Concentrations, sources and processes involving volatile organic compounds (VOCs) in the marine and terrestrial background atmosphere of the Southern Hemisphere [PDF]

, 2017
This work characterised atmospheric composition over the Southern and South Pacific Oceans, and in a smoke plume from a coastal heathland fire, with a focus on volatile organic compounds (VOCs).
Lawson, Sarah J.
core   +1 more source

Evaluation of the correlation between concentration of volatile organic compounds and temperature of the exhaust gases in motor vehicles

E3S Web of Conferences, 2017
Volatile organic compounds (VOCs) are the group of organic compounds which are one of the most important air pollutants. One of the main sources of VOCs are combustion processes including fuel combustion is internal combustion engines.
Skrętowicz Maria, Wróbel Radosław, Andrych-Zalewska Monika   +2 more
doaj   +1 more source

Pathophysiology of SARS-CoV-2 Infection in the Upper Respiratory Tract and Its Relation to Breath Volatile Organic Compounds

mSystems, 2021
Among the many products of metabolic processes are volatile organic compounds (VOCs). In the airways, these volatile metabolites are emitted through breathing and thus are easily sampled for analysis.
Moria Lichtenstein, Sondra Turjerman, Jayant M. Pinto, Orna Barash, Omry Koren   +4 more
doaj   +1 more source

Volatile organic compounds (VOCs) of lemongrass, garlic, guava and lemon

, 2021
The volatile organic compounds (VOCs) in the test plants were analysed using coupled gas chromatography/mass spectrometry (GC/MS) on an Agilent Technologies 7890A GC linked to a 5795C MS (inert XL/ EI/CI MSD) triple axis mass detector, equipped with a ...
Pirk, Christian W W, Mohammed, Samira, Ekesi, Sunday, Antwi-Agyakwa, Akua Konadu, Torto, Baldwyn, Yusuf, Abdullahi A   +5 more
core   +1 more source

New tool for Gram-negative and Gram-positive bacterial strains differentiation through GC-MS direct identification of exogenous VOC metabolites in headspace vials

Romanian Journal of Ecology & Environmental Chemistry, 2022
In this paper, a chromatographic method for the determination of volatile organic compounds (VOCs) as a tool for Gram-positive and Gram-negative bacterial strains identification was described.
Florentina Laura Chiriac, Andreea Valentina Petre, Catalina Stoica, Iuliana Paun, Florinela Pirvu, Ionut Cristea, Nicoleta Vasilache, Marcela Niculescu, Gabriel Serban, Vasile Ion Iancu   +9 more
doaj   +1 more source

Bacteria detection based on the evolution of enzyme-generated volatile organic compounds: Determination of Listeria monocytogenes in milk samples [PDF]

, 2014
The rapid detection of Listeria monocytogenes contamination in food is essential to prevent food-borne illness in humans. The aim of this study was to differentiate non-contaminated milk from milk contaminated with L.
Dean, John, Stanforth, Stephen, Tait, Emma, Perry, John   +3 more
core   +1 more source