Results 31 to 40 of about 17,342 (289)
Stable bromine isotopic composition of atmospheric CH3Br
Tropospheric methyl bromide (CH3Br) is the largest source of bromine to the stratosphere and plays an important role in ozone depletion. Here, the first stable bromine isotope composition (%26dgr%3B81Br) of atmospheric CH3Br is presented.
Axel Horst +5 more
doaj +1 more source
The Behavior of Halogens During Subduction-Zone Processes
Halogens (Cl, F, I, Br) are enriched in surface reservoirs compared to the mantle. The subduction of these reservoirs in the form of sedimentary pore fluids, sediments, altered oceanic crust, and serpentinized mantle lithosphere returns halogens to the ...
Marco Scambelluri +7 more
core +1 more source
Halogen chemistry reduces tropospheric O3 radiative forcing [PDF]
Tropospheric ozone (O3) is a global warming gas, but the lack of a firm observational record since the preindustrial period means that estimates of its radiative forcing (RFTO3) rely on model calculations.
T. Sherwen +4 more
doaj +1 more source
Crystal chemistry and partitioning of halogens in hydrous silicates
International audienceUnderstanding how halogens are distributed among usual hydrous silicates in the lithosphere is important to constrain their deep geochemical cycle and fluid-rock interactions in subduction zones.
Dubacq, Benoît +2 more
core +1 more source
Seasonal mass balance of halogens in simulated rice paddies [PDF]
Halogens released from soil reservoirs to the atmosphere play important roles in atmospheric chemistry, including ozone loss and aerosol formation. Closed system experiments to determine controlling factors in halogen movement between the pedosphere ...
Redeker, KR +5 more
core +1 more source
Bilirubin Oxidase from Myrothecium verrucaria Physically Absorbed on Graphite Electrodes. Insights into the Alternative Resting Form and the Sources of Activity Loss. [PDF]
The oxygen reduction reaction is one of the most important chemical processes in energy converting systems and living organisms. Mediator-less, direct electro-catalytic reduction of oxygen to water was achieved on spectrographite electrodes modified by ...
Federico Tasca +4 more
doaj +1 more source
Application of Molecular Emissions in Laser-Induced Breakdown Spectroscopy: A Review
Laser-induced breakdown spectroscopy (LIBS) with advantages of rapid, in situ, and little sample pretreatment has been used in various fields. However, LIBS technology remains challenging in the detection of halogens, isotopes, and samples with similar ...
Fanghao Xu +4 more
doaj +1 more source
Halogens in chondritic meteorites and terrestrial accretion [PDF]
Volatile element delivery and retention played a fundamental role in Earth’s formation and subsequent chemical differentiation. The heavy halogens (Cl, Br and I) are key tracers of accretionary processes due to their high volatility and incompatibility ...
Burgess, R +21 more
core +1 more source
Case study of the differentiated subvolcanic porphyritic intrusion underlying Magnitogorsk skarn-magnetite deposit revealed regular relations between petrochemistry features of the rocks and composition of halogens (Cl and F) in the accessory apatite ...
T. D. Bocharnikova +3 more
doaj +2 more sources

