搜索结果: 1-15 共查到“理学 chemical characterization”相关记录19条 . 查询时间(0.515 秒)
Physico-chemical characterization of SOA derived from catechol and guaiacol – a model substance for the aromatic fraction of atmospheric HULIS
Physico-chemical characterization SOA catechol and guaiacol atmospheric HULIS
2011/1/18
Secondary organic aerosol (SOA) was produced from the aromatic precursors catechol and guaiacol by reaction with ozone in the presence and absence of simulated sunlight and humidity and investigated f...
Highly time-resolved chemical characterization of atmospheric submicron particles during 2008 Beijing Olympic Games using an Aerodyne High-Resolution Aerosol Mass Spectrometer
chemical characterization atmospheric submicron particles 2008 Beijing Olympic Games an Aerodyne High-Resolution Aerosol Mass Spectrometer
2010/10/11
As part of Campaigns of Air Quality Research in Beijing and Surrounding Region-2008 (CAREBeijing-2008), an Aerodyne High-Resolution Time-of-Flight Aerosol Mass Spectrometer (HR-ToF-AMS) was deployed i...
A PHYSICAL -CHEMICAL CHARACTERIZATION OF THE MIRIÑAY RIVER, ARGENTINA, BY GRAPHICAL METHODS
physical-chemical characteristics Miriñ ay River graphical method
2009/10/13
A graphical method is applied to display the physical-chemical characteristics of the Miriñay River, Corrientes Province, Argentina. The graphical results show the following parameters: pH, alk...
Real time chemical characterization of local and regional nitrate aerosols
Real time chemical characterization nitrate aerosols
2009/6/16
Nitrate aerosols make a very major contribution to PM2.5 and PM10 in western Europe, but their sources and pathways have not been fully elucidated. An Aerosol Time-of-Flight Mass Spectrometer (ATOFMS)...
Chemical characterization of fog and rain water collected at the eastern Andes cordillera
fog eastern Andes cordillera rain water
2009/5/18
During a three month period in 2003 and 2004, the chemistry of fog and rainwater were studied at the "El Tiro" site in a tropical mountain forest ecosystem in Ecuador, South America. The fogwater samp...
Microbiology and atmospheric processes:biological,physical and chemical characterization of aerosol particles
Microbiology atmospheric processes chemical characterization aerosol particles
2010/1/19
The interest in bioaerosols has traditionally been linked to health hazards for humans, animals and plants. However, several components of bioaerosols exhibit physical properties of great significance...
Mineralogical and chemical characterization of suspended atmospheric particles over the east Mediterranean based on synoptic-scale circulation patterns
Suspended desert dust Pollution Mineralogy
2011/11/11
Suspended atmospheric particles were collected in Israel in order to identify their nature and relationships with the major synoptic-scale circulation patterns. The particles were analyzed for their m...
Evaluation and application of a semi-continuous chemical characterization system for water soluble inorganic PM2.5 and associated precursor gases
Evaluation application semi-continuous chemical characterization system water soluble inorganic PM2.5
2010/2/8
Water soluble inorganic particles components (Cl−, SO42−, NO3−, and NH4+) and concentrations of their associated precursor gases (HCl, SO2, HNO3, NH3) were semi-continuously measured...
Chemical characterization of the inorganic fraction of aerosols and mechanisms of the neutralization of atmospheric acidity in Athens, Greece
inorganic fraction aerosols atmospheric acidity Athens Greece
2008/12/11
The PM10 mass concentration levels and inorganic chemical composition were determined on 12-h resolution sampling during August 2003 and March 2004, in the centre of Athens, Greece. The August 2003 ca...
Aircraft measurements over Europe of an air pollution plume from Southeast Asia – aerosol and chemical characterization
Europe air pollution Southeast Asia aerosol chemical characterization
2008/12/1
An air pollution plume from Southern and Eastern Asia, including regions in India and China, was predicted by the FLEXPART particle dispersion model to arrive in the upper troposphere over Europe on 2...
Excited State Properties of Fluorine-Substituted
Hexabenzocoronene: A Quantum-Chemical Characterization
intramolecular charge transfer fluorine-substituted hexabenzocoronene
transition densities charge difference densities
2007/8/15
2006Vol.46No.2pp.229-232DOI:
Excited State Properties of Fluorine-Substituted
Hexabenzocoronene: A Quantum-Chemical Characterization
LI Yuan-Zuo, SUN Yu, LI Yong-Qing, and MA Feng...
Molecular-level chemical characterization and bioavailability of dissolved organic matter in stream water using electrospray-ionization mass spectrometry
Molecular-level chemical characterization bioavailability dissolved organic matter stream water electrospray-ionization mass spectrometry
2014/5/8
We used electrospray-ionization mass spectrometry (ESI-MS) to characterize, at the compound level, dissolved organic matter (DOM) composition and bioavailability in two streams. There was considerable...
Intrusive chemical characterization of tourmaline: M鰏sbauer study of Fe valance and site occupancy
M鰏sbauer study site occupancy Fe valance Intrusive chemical characterization of tourmaline
2012/3/31
Our recent paper noted that ?#8734;some of the existing [M?ssbauer] studies (e.g., Fuchs et al. 1995) should be discounted due to th
fact that peak widths are less than the theoretical minimum impose...
Surface chemical characterization and surface diffraction effects of real margarite (001): An angle-resolved XPS investigation
surface of natural pure margarite angle-resolved XPS investigation real margarite (001)
2012/3/31
The (001) surface of natural pure margarite was chemically characterized by angle-resolved X-
ray photoelectron spectroscopy (ARXPS). The extreme surface sensitivity of ARXPS permits con-
cluding th...
Physico-Chemical Characterization and Catalytic Properties of Copper-Doped Alumina-Pillared Montmorillonites
Alumina Copper Copper Catalyst Montmorillonite Phenol Hydroxylation Pillared Clay
2011/12/2
Abstract: Cu-doped alumina-pillared montmorillonite samples have been prepared and characterized with X-ray diffraction (XRD), Brunauer-Emmett-Teller (BET), electron spin resonance (ESR) and inductive...