搜索结果: 1-15 共查到“理学 chlorine”相关记录26条 . 查询时间(0.078 秒)
The lunar magma ocean volatile signature recorded in chlorine-rich glasses in KREEP basalts 15382 and 15386
chlorine fluorine Moon water glass
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2017/4/10
The last liquids of the lunar magma ocean, known as urKREEP, should be highly enriched in volatiles, such as water,
fluorine, and chlorine. We find chlorine-rich glasses in two pristine KREEP basalts...
Chlorine solubility in evolved alkaline magmas
alkaline magmas solubility chlorine supercritical fluid
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2015/9/10
Experimental studies of Cl solubility in trachytic to phonolitic melts provide insights into the capacity of alkaline
magmas to transport Cl from depth to the earth?s surface and atmosphere, and info...
Simultaneous determinations of fluorine, chlorine, and sulfur in rock samples by ion chromatography combined with pyrohydrolysis
pyrohydrolysis halogen sulfur ion chromatography geological reference material
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2017/4/10
We present a simplified method for simultaneous determinations of fluorine (F), chlorine (Cl), and sulfur (S) contents
and isotopic abundances in rock samples. After using pyrohydrolysis to extract F...
High levels of molecular chlorine found in arctic atmosphere（图）
Molecular chlorine Bromine chemistry
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2014/3/17
Scientists studying the atmosphere above Barrow, Alaska, have discovered unprecedented levels of molecular chlorine in the air, a new study reports.
Stable chlorine isotope ratio analysis of subnanomolar level methyl chloride by continuous-flow isotope ratio mass spectrometry
stable chlorine isotope ratio continuous flow isotope ratio mass spectrometry methyl chloride
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2017/4/11
An analytical system using continuous-flow isotope ratio mass spectrometry (CF-IRMS) was developed to determine
the stable chlorine isotope ratios (δ37Cl) for CH3Cl. By using appropriate devices for ...
Estimation of sulfur, fluorine, chlorine and bromine fluxes at Mid Ocean Ridges using a new experimental crushing and extraction method
degassing flux sulfur halogen helium Mid Ocean Ridge basalts
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2017/4/11
We measured helium-3 (3
He), sulfur (S), fluorine (F), chlorine (Cl) and bromine (Br) concentrations in vesicles of Mid
Ocean Ridge Basalts (MORBs) and Back-Arc Basin Basalts (BABBs). The aim of thi...
Evaluation of stratospheric chlorine chemistry for the Arctic spring 2005 using modelled and measured OClO column densities
stratospheric chlorine chemistry the Arctic spring 2005 OClO column densities
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2011/2/24
Chlorine dioxide, OClO, column amounts retrieved from measurements of the SCIAMACHY satellite instrument are presented and validated by comparison with simultaneous ground-based DOAS observations. In ...
Evidence for heterogeneous chlorine activation in the tropical UTLS
heterogeneous chlorine the tropical UTLS
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2011/1/19
Airborne in-situ observations of ClO in the tropics were made during the TROCCINOX (Aracatuba, Brazil, February 2005) and SCOUT-O3 (Darwin, Australia, November/December 2005) field campaigns. While du...
Measurement of chlorine stable isotopic composition by negative thermal ionization mass spectrometry using total evaporation technique
chlorine stable isotopes total evaporation method negative thermal ionization mass spectrometry small samples
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2017/8/9
A total evaporation negative thermal ionization mass spectrometry (TE-N-TIMS) technique for the isotopic analysis of chlorine was developed. This technique provides fast and reliable way to determine ...
Density functional theory investigation of electrophilic addition reaction of chlorine to tricyclo[4.2.2.22,5]dodeca-1,5-diene
DFT calculations intrinsic reaction coordinates transannular reactions
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2010/10/14
Potential energy surface (PES) of the tricyclo[4.2.2.22,5]dodeca- 1,5-diene (TCDD)-Cl2 system was studied by B3LYP/6-311+G(d,p) method and the configurations [reactants, molecular charge-transfer (CT)...
More evidence for very short-lived substance contribution to stratospheric chlorine inferred from HCl balloon-borne in situ measurements in the tropics
short-lived substance contribution stratospheric chlorine HCl balloon-borne
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2010/2/1
Volume mixing ratio (vmr) vertical profiles of hydrogen chloride (HCl) are retrieved from in situ measurements performed by a balloon-borne infrared tunable diode laser absorption spectrometer (SPIRAL...
Decomposition of Free Chlorine with Tertiary Ammonium
Free Chlorine Tertiary Ammonium
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2010/9/17
The reaction of free chlorine with tertiary ammonium or amine compounds in aqueous solution was studied by the amperometry at a rotating Pt-disk electrode. The amperometric method can be applied to fo...
Chlorine activation by N2O5:simultaneous,in situ detection of ClNO2 and N2O5 by chemical ionization mass spectrometry
Chlorine activation N2O5 simultaneous ClNO2 N2O5 chemical ionization mass spectrometry
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2010/2/8
We report a new method for the simultaneous in situ detection of nitryl chloride (ClNO2) and dinitrogen pentoxide (N2O5) using chemical ionization mass spectrometry (CIMS). The technique relies on the...
Suppression of chlorine activation on aviation-produced volatile particles
chlorine activation aviation-produced volatile particles
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2009/3/12
We examine the effect of nanometer-sized aircraft-induced aqueous sulfuric acid (H2SO4/H2O) particles on atmospheric ozone as a function of temperature. Our calculations are based on a previously deri...
Ozone loss and chlorine activation in the Arctic winters 1991-2003 derived with the tracer-tracer correlations
Ozone loss chlorine activation Arctic winters tracer-tracer correlations
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2009/3/9
Chemical ozone loss in the Arctic stratosphere was investigated for the twelve years between 1991 and 2003 employing the ozone-tracer correlation method. For this method, the change in the relation be...