Results 1 to 10 of about 237,703 (167)

Atmospheric evolution of emissions from a boreal forest fire: the formation of highly functionalized oxygen-, nitrogen-, and sulfur-containing organic compounds [PDF]

Atmospheric Chemistry and Physics, 2021
Forest fires are major contributors of reactive gas- and particle-phase organic compounds to the atmosphere. We used offline high-resolution tandem mass spectrometry to perform a molecular-level speciation of gas- and particle-phase compounds sampled via
J. C. Ditto, M. He, T. N. Hass-Mitchell, S. G. Moussa, K. Hayden, S.-M. Li, J. Liggio, A. Leithead, P. Lee, M. J. Wheeler, J. J. B. Wentzell, D. R. Gentner, D. R. Gentner   +12 more
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Impact of biogenic secondary organic aerosol (SOA) loading on the molecular composition of wintertime PM_2.5 in urban Tianjin: an insight from Fourier transform ion cyclotron resonance mass spectrometry [PDF]

Atmospheric Chemistry and Physics, 2023
Biomass burning is one of the key sources of urban aerosols in the North China Plain, especially during winter, when the impact of secondary organic aerosols (SOAs) formed from biogenic volatile organic compounds (BVOCs) is generally considered to be ...
S. Zhong, S. Chen, J. Deng, Y. Fan, Q. Zhang, Q. Xie, Y. Qi, W. Hu, L. Wu, X. Li, C. M. Pavuluri, J. Zhu, X. Wang, D. Liu, X. Pan, Y. Sun, Z. Wang, Y. Xu, H. Tong, H. Su, Y. Cheng, K. Kawamura, P. Fu   +22 more
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1,4,6,10-Tetraazaadamantanes (TAADs) with N-amino groups: synthesis and formation of boron chelates and host–guest complexes

Beilstein Journal of Organic Chemistry, 2022
A synthetic route to 1,4,6,10-tetraazaadamantanes (TAADs) bearing free and protected amino groups at the bridge N-atoms has been developed via intramolecular cyclotrimerization of C=N units in the corresponding tris(hydrazonoalkyl)amines.
Artem N. Semakin, Ivan S. Golovanov, Yulia V. Nelyubina, Alexey Yu. Sukhorukov   +3 more
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Research progress in synthesis and application of siloxane compounds

Cailiao gongcheng, 2021
Chemical reactions based on the characteristics of silicon-oxygen bonds and different conditions are important methods to construct new organic/inorganic siloxane functional materials with very different structures and unique properties, which have ...
CHENG Yu-qiao, LU Shuang, FENG Zhe, ZHAO Wen-hui, ZHANG Zhi-ting, ZHAO Yue   +5 more
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Analysis on Film Forming Mechanism of Chromium-Free Passivation Agent for Aluminum Alloy Wheel Hub [PDF]

Cailiao Baohu, 2023
In order to study the film forming mechanism of chromium-free passivation film for aluminum alloy wheel hub， the film-forming effect and mechanism of chromium-free chemical conversion film on aluminum alloy automobile wheel hub were studied by ...
CHEN Yingjiao, CHEN Bihong, YAN Liqiang, LI Heng, LIU Wanqing
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The direct determination of oxygen in organic compounds [PDF]

Analytica Chimica Acta, 1951
Abstract Experience with the Schutze carbon reduction method in the UNTERZAUCHER modification showed (1) an inconveniently high blank value and (2) the necessity of an extra correction in the analysis of substances low in oxygen content (e.g., hydrocarbon oils).
Gouverneur, P., M. A. Schreuders,, Degens, P. N., Boswell, Maitland C.   +3 more
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Lewis Acids and Heteropoly Acids in the Synthesis of Organic Peroxides

Pharmaceuticals, 2022
Organic peroxides are an important class of compounds for organic synthesis, pharmacological chemistry, materials science, and the polymer industry. Here, for the first time, we summarize the main achievements in the synthesis of organic peroxides by the
Ivan A. Yaremenko, Peter S. Radulov, Yulia Yu. Belyakova, Dmitriy I. Fomenkov, Svetlana B. Tsogoeva, Alexander O. Terent’ev   +5 more
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Chemical characterization of oxygenated organic compounds in the gas phase and particle phase using iodide CIMS with FIGAERO in urban air [PDF]

Atmospheric Chemistry and Physics, 2021
The atmospheric processes under polluted environments involving interactions of anthropogenic pollutants and natural emissions lead to the formation of various and complex secondary products.
C. Ye, B. Yuan, B. Yuan, Y. Lin, Y. Lin, Z. Wang, Z. Wang, W. Hu, T. Li, T. Li, W. Chen, C. Wu, C. Wu, C. Wang, C. Wang, S. Huang, S. Huang, J. Qi, J. Qi, B. Wang, C. Wang, W. Song, X. Wang, E. Zheng, E. Zheng, J. E. Krechmer, P. Ye, Z. Zhang, Z. Zhang, X. Wang, X. Wang, D. R. Worsnop, M. Shao, M. Shao, M. Shao   +34 more
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Peroxide-Mediated Oxygenation of Organic Compounds by Fungal Peroxygenases [PDF]

Antioxidants, 2022
Unspecific peroxygenases (UPOs), whose sequences can be found in the genomes of thousands of filamentous fungi, many yeasts and certain fungus-like protists, are fascinating biocatalysts that transfer peroxide-borne oxygen (from H2O2 or R-OOH) with high efficiency to a wide range of organic substrates, including less or unactivated carbons and ...
Martin Hofrichter, Harald Kellner, Robert Herzog, Alexander Karich, Jan Kiebist, Katrin Scheibner, René Ullrich   +6 more
openaire   +3 more sources

Application of wastewater with high organic load for saline-sodic soil reclamation focusing on soil purification ability [PDF]

Global Journal of Environmental Science and Management, 2017
Fresh water source scarcity in arid and semiarid area is limitation factor for saline-sodic soil reclamation. The reusing of agricultural drainage and industrial wastewater are preferred strategies for combating with this concern.
M.A. Kameli, M. Chorom, N. Jaafarzadeh, H. Janadeleh   +3 more
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