Results 71 to 80 of about 465,997 (269)
Emission of volatile halogenated organic compounds over various Dead Sea landscapes [PDF]
, 2019 Volatile halogenated organic compounds (VHOCs), such as methyl halides (CH3X; X is Br, Cl and I) and very short-lived halogenated substances (VSLSs; bromoform-CHBr3, dibromomethane-CH2Br2, bromodichloromethane-CHBrCl2, trichloroethylene-C2HCl3 ...
Blake, D +7 more
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Mass Spectrometry Reviews, EarlyView.ABSTRACT The review examines the evolution of chemical ionization mass spectrometry (CI‐MS), a technique developed in 1966 by Field and Munson. CI is a soft‐ionization method that produces more intense molecular ions with less fragmentation than electron ionization (EI).
Malvika Dutt +4 more
wiley +1 more source
Scientific Reports, 2015 Vycor porous glass has long served as a model mesoporous material. During the physical adsorption of halogenated hydrocarbon vapours, such as dibromomethane, the adsorption isotherm exhibits an hysteresis loop; a gradual ascent is observed at higher ...
A. Mitropoulos +4 more
semanticscholar +1 more source
Metal Hydrides‐Based Hydrogen Purification Systems—A Review
MetalMat, EarlyView.Metal hydrides as an innovative means to purify hydrogen can enable new avenues in the use of hydrogen as a clean energy vector across its production methods. ABSTRACT This review investigates the critical role of purification for enabling the use of hydrogen from various production pathways.
Cameron Reid +2 more
wiley +1 more source
Ambient halocarbon mixing ratios in 45 Chinese cities [PDF]
, 2006 During this study 158 whole air samples were collected in 45 Chinese cities in January and February 2001. The spatial distribution of different classes of halocarbons in the Chinese urban atmosphere, including chlorofluorocarbons (CFCs ...
Barletta, B +8 more
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A liquid chromatography tandem mass spectrometry method for simultaneous analysis of 46 atmospheric particulate-phase persistent organic pollutants and comparison with gas chromatography/mass spectrometry, [PDF]
, 2017 A novel multi-analyte method for the simultaneous determination of 46 compounds of environmental concern, most of them belonging to the category of persistent organic pollutants, was developed using high-performance liquid chromatography and the results ...
Buiarelli, Francesca +4 more
core +1 more source
, 2016 We have determined halogenated polycyclic aromatic hydrocarbons (XPAHs) in 40 samples of surface soil (n = 32) and river sediment (n = 8) collected around the E-waste recycling area in Bui Dau, northern Vietnam.
Qi Wang +10 more
semanticscholar +1 more source
Polymer International, EarlyView.An overview and categorization of man‐made per‐ or polyfluoroalkyl substances (PFASs) including low‐molar‐mass and high‐molar‐mass fluorochemicals, and their international regulations is presented. Though certain PFASs are toxic, bioaccumulative and cross the human cellular membranes, others, such as fluoropolymers, are safe, reliable and involved in ...
Bruno Améduri
wiley +1 more source
Modular Donor‐Acceptor Diradicaloids Based on an Electron Deficient N‐Heteroacene Acceptor
Small, EarlyView.This work presents a modular approach to donor‐acceptor‐donor (D‐A‐D) diradicaloids that show systematic evolution of their energy gaps, singlet‐triplet splittings, and diradical character (y). The correlation of (opto)electronic, spin, and magnetic properties with high‐fidelity theoretical investigations provides clear connections between the degree ...
Tanner L. Smith +9 more
wiley +1 more source
Mixing ratios of volatile organic compounds (VOCs) in the atmosphere of Karachi, Pakistan [PDF]
, 2002 Mixing ratios of carbon monoxide (CO), methane (CH4), non-methane hydrocarbons, halocarbons and alkyl nitrates (a total of 72 species) were determined for 78 whole air samples collected during the winter of 1998-1999 in Karachi, Pakistan.
Barletta, B +5 more
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