Results 71 to 80 of about 81,673 (202)

Real-time quantitative analysis of volatile products generated during solid-state polypropylene thermal oxidation [PDF]

, 2013
Analysis of volatile organic compounds (VOCs) during PP thermal oxidation under three oxygen partial pressures (0%, 21% and 100% of atmospheric pressure) at 140 C was performed by proton transfer reaction coupled with Fourier transform ion cyclotron ...
COLIN, Xavier, DESNOUX, Eric, FRANCOIS-HEUDE, Alexandre, HENINGER, Michel, LEPROVOST, Julien, MESTDAGH, Helene, RICHAUD, Emmanuel   +6 more
core   +4 more sources

Total Observed Organic Carbon (TOOC): A synthesis of North American observations [PDF]

, 2007
Measurements of organic carbon compounds in both the gas and particle phases measured upwind, over and downwind of North America are synthesized to examine the total observed organic carbon (TOOC) over this region.
Aiken, A. C., Allan, J. D., Apel, E., Atlas, E. L., Baker, A. K., Bates, T. S., Beyersdorf, A. J., Blake, D. R., Campos, T., Coe, H., Crounse, J. D., de Gouw, J. A., DeCarlo, P. F., Dunlea, E. J., Flocke, F. M., Fried, A., Goldan, P., Goldstein, A. H., Griffin, R. J., Heald, C. L., Herndon, S. C., Holloway, J. S., Holzinger, R., Jimenez, J. L., Junkermann, W., Kuster, W. C., Lewis, A. C., Meinardi, S., Millet, D. B., Onasch, T., Polidori, A., Quinn, P. K., Riemer, D. D., Roberts, J. M., Salcedo, D., Sive, B., Swanson, A. L., Talbot, R., Warneke, C., Weber, R. J., Weibring, P., Wennberg, P. O., Wittig, A. E., Worsnop, D. R., Zhang, R., Zheng, J., Zheng, W.   +46 more
core   +7 more sources

Field observations of volatile organic compound (VOC) exchange in red oaks [PDF]

Atmospheric Chemistry and Physics, 2017
Abstract. Volatile organic compounds (VOCs) emitted by forests strongly affect the chemical composition of the atmosphere. While the emission of isoprenoids has been largely characterized, forests also exchange many oxygenated VOCs (oVOCs), including methanol, acetone, methyl ethyl ketone (MEK), and acetaldehyde, which are less well understood.
Cappellin, L., Algarra Alarcon, A., Herdlinger-Blatt, I., Sanchez, J., Biasioli, F., Martin, S. T., Loreto, F., McKinney, K. A.   +7 more
openaire   +5 more sources

Atmospheric benzene observations from oil and gas production in the Denver-Julesburg Basin in July and August 2014 [PDF]

, 2016
High time resolution measurements of volatile organic compounds (VOCs) were collected using a proton-transfer-reaction quadrupole mass spectrometry (PTR-QMS) instrument at the Platteville Atmospheric Observatory (PAO) in Colorado to investigate how oil ...
Adgate, Ahmadov, Air Pollution Control Division, Apel, Apel, Baker, Bar-Ilan, Barletta, Bloomdahl, Bolden, Borbon, Bravo, Broderick, Bunch, Burstyn, Buzcu-Guven, Capleton, Chambers, Colborn, Colman, Colorado Air Quality Control Commission, Conner, DISCOVER-AQ Science Team, Eiceman, Eisele, Energy Information Administration, Field, Fortin, Fujita, Gelencsér, Gentner, Gilman, Gilman, Gouw, Gouw, Gross, Heeb, Helmig, Jobson, Katzenstein, Kemball-Cook, Knighton, LaFranchi, Martins, McKenzie, Moore, Müller, Pacsi, Parrish, Prenni, Pétron, Pétron, Rao, Reddy, Roberts, Rutter, Seigneur, Swarthout, Swarthout, Thompson, Toth, Verma, Vinciguerra, Wallace, Warneke, Warneke, Watson, Whitby, World Health Organization, Xiao   +69 more
core   +1 more source

Relationship Between Volatile Aroma Components and Amino Acid Metabolism in Crabapple (Malus spp.) Flowers, and Development of a Cultivar Classification Model

Horticulturae
The integration of HS-SPME-GC/MS and UPLC-MS/MS techniques enabled the profiling of volatile organic compounds (VOCs) and amino acids (AAs) in 18 crabapple flower cultivars, facilitating the development of a novel VOC–AA model.
Jingpeng Han, Yuxing Yao, Wenhuai Kang, Yang Wang, Jingchuan Li, Huizhi Wang, Ling Qin   +6 more
doaj   +1 more source

Advances in volatile organic pollutant capture and adsorption degradation treatment technologies [PDF]

E3S Web of Conferences
With the continuous development of industry, the emission of volatile organic compounds (VOCs) continues to increase, and the pollution problem becomes increasingly serious.
Xu Yinan, Mao Lihui, Shao Chida, Zhu Bin, Meng Fandong, Zhang Qinghua, Yu Zhipeng, Wang Junhui   +7 more
doaj   +1 more source

Applicability of a SPME method for the Rapid Determination of VOCs

CHIMIA, 2002
A fast method for monitoring volatile organic compounds in water and air is described whereby the VOCs are adsorbed on a SPME and then desorbed directly in a flame ionization detector (FID) or a photoionization detector (PID).
Alexandre Béné, Jean-Luc Luisier, Antoine Fornage   +2 more
doaj   +1 more source

Air quality in Mecca and surrounding holy places in Saudi Arabia during Hajj: initial survey. [PDF]

, 2014
The Arabian Peninsula experiences severe air pollution, the extent and sources of which are poorly documented. Each year in Saudi Arabia this situation is intensified during Hajj, the Holy Pilgrimage of Islam that draws millions of pilgrims to Mecca.
Aburizaiza, Omar S, Barletta, Barbara, Blake, Donald R, Blake, Nicola J, Gartner, Aaron, Khwaja, Haider, Meinardi, Simone, Siddique, Azhar, Simpson, Isobel J, Zeb, Jahan   +9 more
core   +2 more sources

METHOD FOR RAPID ON-SITE IDENTIFICATION OF VOCs IN EWE MILK

Italian Journal of Food Safety, 2011
Use of a portable GC/MS for on-site identification of volatile organic compounds (VOCs) in ewe milk is for the first time reported. Different VOCs tipically observed in milk were detected with a good repetitivity of the measurement.
D. Ranucci, R. Branciari, F. Asdrubali, D. Miraglia   +3 more
doaj   +1 more source

Characterization of carbon monoxide, methane and nonmethane hydrocarbons in emerging cities of Saudi Arabia and Pakistan and in Singapore [PDF]

, 2016
We investigate the composition of 63 C2-C10 nonmethane hydrocarbons (NMHCs), methane (CH4) and carbon monoxide (CO), in Jeddah, Mecca, and Madina (Saudi Arabia), in Lahore, (Pakistan), and in Singapore. We established a database with which to compare and
Aburizaiza, Omar S, Barletta, Barbara, Blake, Donald R, Blake, Nicola J, Emmons, Louisa K, Farrukh, Muhammad A, Khwaja, Haider A, Meinardi, Simone, Siddique, Azhar, Simpson, Isobel J, Yu, Liya E, Zeb, Jahan   +11 more
core   +1 more source