Results 21 to 30 of about 43,825 (232)

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

Seasonal measurements of total OH reactivity emission rates from Norway spruce in 2011 [PDF]

, 2013
Numerous reactive volatile organic compounds (VOCs) are emitted into the atmosphere by vegetation. Most biogenic VOCs are highly reactive towards the atmosphere's most important oxidant, the hydroxyl (OH) radical.
Williams, J., J. Lelieveld, Kesselmeier, Jürgen, Bourtsoukidis, E., J. Kesselmeier, Williams, Jonathan, Nölscher, A., Kesselmeier, J., E. Bourtsoukidis, J. Williams, Nölscher, Anke Christine, Bonn, Boris, Bonn, B., Lelieveld, Johannes, Lelieveld, J., A.C. Nölscher, Bourtsoukidis, Efstratios, B. Bonn   +17 more
core   +1 more source

Exhaled volatile organic compounds (VOCs) for prediction of asthma exacerbation in children. [PDF]

Int J Occup Med Environ Health
To find possible relationship between asthma exacerbation and metabolomic profile of airways, assessed by non-invasive method - free volatile organic compounds (VOCs) in exhaled air in children.The study included 80 children aged 4-18 years with asthma: 42 children with a min.
Gmachowska K, Podlecka D, Bonikowski R, Majak P, Kapka K, Jerzyńska J.   +5 more
europepmc   +4 more sources

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

OC-163 identification of inflammatory bowel disease (IBD) using field asymmetric ion mobility spectrometry (FAIMS) [PDF]

, 2012
Introduction Resident colonic bacteria, principally anaerobes and firmicutes, ferment undigested fibre. The resultant volatile organic compounds (VOCs) formed are dissolved in the faeces but also absorbed and excreted in the urine.
Thomas, M. G., Hetherington, E., Arasaradnam, Ramesh P., Ouaret, N., Covington, James A., Quraishi, M. N., Nwokolo, Chuka U., Bardhan, Karna Dev   +7 more
core   +1 more source

Comparison of the neurotoxicities between volatile organic compounds and fragrant organic compounds on human neuroblastoma SK-N-SH cells and primary cultured rat neurons

Toxicology Reports, 2015
These are many volatile organic compounds (VOCs) that are synthesized, produced from petroleum or derived from natural compounds, mostly plants.
Yasue Yamada, Kohei Ohtani, Akinori Imajo, Hanae Izu, Hitomi Nakamura, Kohei Shiraishi   +5 more
doaj   +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

Autothermal Reforming of Volatile Organic Compounds to Hydrogen-Rich Gas

Molecules, 2023
Industrial emissions of volatile organic compounds are urgently addressed for their toxicity and carcinogenicity to humans. Developing efficient and eco-friendly reforming technology of volatile organic compounds is important but still a great challenge.
Chao Bian, Jiazhun Huang, Biqi Zhong, Zefeng Zheng, Dai Dang, Obiefuna C. Okafor, Yujia Liu, Tiejun Wang   +7 more
doaj   +1 more source

Volatile Organic Compounds are Ghosts for Organic Solar Cells [PDF]

Журнал нано- та електронної фізики, 2014
All our efforts to demonstrate a multifunctional device – photovoltaic gas sensor (i.e. solar cell which show photovoltaic action depending on the gas / volatile organic compounds (VOC) in the surrounding atmosphere) yielded negative results ...
Prakash R. Somani, Savita P. Somani, Masayoshi Umeno   +2 more
doaj  

Variations, sources, and effects on ozone formation of VOCs during ozone episodes in 13 cities in China

Frontiers in Environmental Science, 2023
In recent years, ozone (O3) pollution has worsened in China and contributes frequently to air pollution problems. To support the implementation of coordinated control for ozone and fine particulate matter, it is essential to study the chemical ...
Danying Shan, Danying Shan, Zhenyu Du, Zhenyu Du, Ting Zhang, Ting Zhang, Xiulan Zhang, Xiulan Zhang, Guan Cao, Guan Cao, Zirui Liu, Zhixiao Yao, Zhixiao Yao, Ka Tang, Ka Tang, Siyuan Liang   +15 more
doaj   +1 more source