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499 Newest Publications about the topic aerosols

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Liquid-liquid phase separation and evaporation of a laser-trapped organic-organic airborne droplet using temporal spatial-resolved Raman spectroscopy

20-Jun-2018 | Aimable Kalume; Chuji Wang; Joshua Santarpia; Yongle Pan, Physical Chemistry Chemical Physics, 2018

Aerosol particles reaction could happen between different components within a particle or between a particle and its environment. The fate of atmospheric aerosols depends on the environment, the composition and the distribution of the components within a particle. It could be very interesting to ...

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Influence of particle viscosity on mass transfer and heterogeneous ozonolysis kinetics in aqueous–sucrose–maleic acid aerosol

12-Jun-2018 | Frances H. Marshall; Thomas Berkemeier; Manabu Shiraiwa; Lucy Nandy; Peter B. Ohm; Cari S. Dutcher; Jonathan P. Reid, Physical Chemistry Chemical Physics, 2018

Mass transfer between the gas and condensed phases in aerosols can be limited by slow bulk diffusion within viscous particles. During the heterogeneous and multiphase reactions of viscous organic aerosol particles, it is necessary to consider the interplay of numerous mass transfer processes and ...

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Investigation on the hygroscopicity of oxalic acid and atmospherically relevant oxalate salts under sub- and supersaturated conditions

06-Jun-2018 | Suresh Kumar Reddy Borredy; Kimitaka Kawamura, Journal of Environmental Monitoring, 2018

Oxalic acid (OxA) is an end product in the oxidation of many organic compounds before CO2 and therefore is ubiquitous in the atmosphere and the most abundant organic species in aerosols. To better understand the hygroscopic properties of OxA under sub- and supersaturated conditions in the ...

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Molecular characterisation of ambient aerosols by sequential solvent extractions and high-resolution mass spectrometry

31-May-2018 | ie=edge, Environmental Chemistry, 2018

Jingyi Zhang, Bin Jiang, Zhiheng Wang, Yongmei Liang, Yahe Zhang, Chunming Xu, Quan Shi Environmental context. Organic compounds generally make a large contribution to ambient aerosol fine particles, and can influence atmospheric chemistry. Solvent extraction before mass spectrometry is widely ...

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Foreword to the research front on ‘Biogeochemical Cycles across Spatial and Temporal Scales’

29-May-2018 | ie=edge, Environmental Chemistry, 2018

William Maher, Kimberly Myers - Volume 15(2) Environmental context. Organic compounds generally make a large contribution to ambient aerosol fine particles, and can influence atmospheric chemistry. Solvent extraction before mass spectrometry is widely used for the determination of organic ...

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Flow-induced dissolution of femtoliter surface droplet arrays

27-May-2018 | Lei Bao; Vamsi Spandan; Yantao Yang; Brendan Dyett; Roberto Verzicco; Detlef Lohse; Xuehua Zhang, Lab on a Chip, 2018

The dissolution of liquid nanodroplets is a crucial step in many applied processes, such as separation and dispersion in the food industry, crystal formation of pharmaceutical products, concentrating and analysis in medical diagnosis, and drug delivery in aerosols. In this work, using both ...

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Re-examining ammonia addition to the Criegee intermediate: converging to chemical accuracy

26-May-2018 | Jonathon P. Misiewicz; Sarah N. Elliott; Kevin B. Moore; Henry F. Schaefer, Physical Chemistry Chemical Physics, 2018

Stabilized Criegee intermediates (SCI) are formed during the ozonolysis of unsaturated hydrocarbons and have been implicated in the formation of hydroxyl radicals and aerosols. Previous theoretical research [S. Jørgenson and A. Gross, J. Phys. Chem. A, 2009, 113, 10284–10290] computed the rate ...

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Atmospheric chemistry of CH3CHO: the hydrolysis of CH3CHO catalyzed by H2SO4

25-May-2018 | Xing-Feng Tan; Bo Long; Da-Sen Ren; Wei-Jun Zhang; Zheng-Wen Long; Ellen Mitchell, Physical Chemistry Chemical Physics, 2018

Elucidating atmospheric oxidation mechanisms and the reaction kinetics of atmospheric compounds is of great importance and necessary for atmospheric modeling and the understanding of the formation of atmospheric organic aerosols. While the hydrolysis of aldehydes has been detected in the presence ...

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Photochemistry of glyoxylate embedded in sodium chloride clusters, a laboratory model for tropospheric sea-salt aerosols

25-May-2018 | Nina K. Bersenkowitsch; Milan Ončák; Christian van der Linde; Andreas Herburger; Martin K. Beyer, Physical Chemistry Chemical Physics, 2018

Although marine aerosols undergo extensive photochemical processing in the troposphere, a molecular level understanding of the elementary steps involved in these complex reaction sequences is still missing. As a defined laboratory model system, the photodissociation of sea salt clusters doped ...

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Thermodynamic versus non-equilibrium stability of palmitic acid monolayers in calcium-enriched sea spray aerosol proxy systems

25-May-2018 | Bethany A. Wellen Rudd; Andrew S. Vidalis; Heather C. Allen, Physical Chemistry Chemical Physics, 2018

Of the major cations in seawater (Na+, Mg2+, Ca2+, K+), Ca2+ is found to be the most enriched in fine sea spray aerosols (SSA). In this work, we investigate the binding of Ca2+ to the carboxylic acid headgroup of palmitic acid (PA), a marine-abundant fatty acid, and the impact such binding has on ...

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