نتایج جستجو برای: ozonolysis
تعداد نتایج: 657 فیلتر نتایج به سال:
Thermodenuding particles can provide insights into aerosol composition and may be a way to create particles in laboratory chambers that better mimic the atmosphere. The relative volatility of secondary organic aerosol (SOA) was investigated by evaporating organics from the particles using a thermodenuder (TD) at temperatures between ∼ 60 and 100 C. Volatility was influenced by the parent hydroc...
The formation and detailed composition of secondary organic aerosol (SOA) from the gas phase ozonolysis of αand β-pinene has been simulated using the Master Chemical Mechanism version 3 (MCM v3), coupled with a representation of gas-to-aerosol transfer of semivolatile and involatile oxygenated products. A kinetics representation, based on equilibrium absorptive partitioning of ca. 200 semivolat...
Extensive research concerning the antibiotics obtained from Basidiomycetes is being carried out (1, 2) but, in comparison with products from Penicillia, Aspergilli, Actinomyces, and bacteria, the chemical nature of only a few has as yet been clarified. Furthermore, none has been of practical use, owing to strong toxicity or weak activity. Kubo and Mizuno (3) have discovered that an ant.ibiotic ...
Introduction Conclusions References Tables Figures Back Close Abstract Introduction Conclusions References Tables Figures Back Close Abstract The formation and detailed composition of secondary organic aerosol (SOA) from the gas phase ozonolysis of α-and β-pinene has been simulated using the Master Chemical Mechanism version 3 (MCM v3), coupled with a representation of gas-to-aerosol transfer o...
K. E. Leather, M. R. McGillen, M. C. Cooke, S. R. Utembe, A. T. Archibald, M. E. Jenkin, R. G. Derwent, D. E. Shallcross, and C. J. Percival The Centre for Atmospheric Science, The School of Earth, Atmospheric and Environmental Science, The University of Manchester, Simon Building, Brunswick Street, Manchester, M13 9PL, UK Biogeochemistry Research Centre, School of Chemistry, The University of ...
Agrochemical contamination is a severe problem that damages the ecosystem and reduces quality of life people exposed; to remedy this problem, nanotechnology an attractive bioremediation alternative for these types chemicals. This study emphasizes actions such as investing in alternatives, example, method photocatalysis using Titanium Dioxide (TiO2) Zinc Oxide (ZnO), alternatives aid degradation...
We use a large laboratory, modeling, and field dataset to investigate the isoprene + O3 reaction, with the goal of better understanding the fates of the C1 and C4 Criegee intermediates in the atmosphere. Although ozonolysis can produce several distinct Criegee intermediates, the C1 stabilized Criegee (CH2OO, 61 ± 9%) is the only one observed to react bimolecularly. We suggest that the C4 Criege...
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