搜索结果: 1-15 共查到“desorption”相关记录50条 . 查询时间(0.506 秒)
Thermodynamics of copper desorption from soils as affected by citrate and succinate
kinetics thermodynamic parameters low molecular weight organic acids
2015/1/30
Desorption of Cu and low molecular weight dissolved organics are the primary factors that impact fate and transport of Cu in soils. To improve predictions of the toxicity and threat from Cu contaminat...
Enrichment of trace elements in ferromanganese concretions from terra rossa and their potential desorption
dolomite karst weathering terra rossa ferromanganese concretions simulated acid rain toxic element desorption
2017/4/11
The distributions of trace elements in ferromanganese concretions (FMCs) and the surrounding terra rossa (TR) matrix
overlying dolomite have been examined to extend our understanding of their mobiliz...
Theoretical equation of gas desorption of particle coal under the non-uniform pressure condition and its analytical solution
Particle coal The theoretical equation of gas desorption The non-uniform pressure condition Analytical solution
2012/3/31
Based on the second Fick’s law, the theoretical equation of gas desorption of particle coal under the nonuniform pressure condition was developed in this paper. The analytical solution of the theoreti...
Sorption and desorption behavior of lead in four different soils of India
Desorption Isotherm Lead Sorption Thermodynamics
2013/3/4
Sorption and desorption mechanisms of lead (Pb) were determined in four different soils collected from different agro-climatic regions of India. The soils were classified as: fine loamy mixed Typic- D...
Desorption of polycyclic aromatic hydrocarbons from aged and unaged charcoals with and without modification of humic acids
Desorption Charcoal PAHs Aging
2013/12/12
Desorption of pyrene and phenanthrene, from two charcoals and humic acid preloaded charcoals werestudied. Desorption occurred obviously in two fractions, with rapid and slow desorption rate constantra...
Concentration- and time-dependent sorption and desorption behavior of phenanthrene to geosorbents with varying organic matter composition
Sorption and desorption Concentration- and time-dependence Site energy distribution Partitioning domains Adsorption domains Composition conformation of SOM
2013/12/12
Batch equilibration and the decant-refill methods were used to measure sorption and desorption ofphenanthrene to four geosorbents with varying organic matter composition at different contactimes to be...
Anomalous Deformation of Palladium Plates by a Small Gravitational Force during Hydrogen Absorption and Desorption
Anomalous Deformation Palladium Plates Small Gravitational Force
2010/11/22
In order to investigate the anomalous deformation of palladium metal during hydrogen absorption and desorption cycles we measured the dynamical changes of the bending and extension of a palladium plat...
Analysis of the chemical composition of organic aerosol at the Mt. Sonnblick observatory using a novel high mass resolution thermal-desorption proton-transfer-reaction mass-spectrometer (hr-TD-PTR-MS)
the chemical composition organic aerosol the Mt. Sonnblick observatory hr-TD-PTR-MS
2010/11/3
For the first time a high mass resolution thermal desorption proton transfer reaction mass spectrometer (hr-TD-PTR-MS) was deployed in the field to analyze the composition of the organic fraction of a...
Visualization of Spatial Distribution of γ-Aminobutyric Acid in Eggplant (Solanum melongena) by Matrix-assisted Laser Desorption/Ionization Imaging Mass Spectrometry
Visualization Spatial Distribution γ-Aminobutyric Acid
2010/9/14
We applied imaging mass spectrometry (IMS) to determine the spatial distribution of γ-aminobutyric acid (GABA). We found that GABA had a specific localization in seeds. We also visualized various biom...
Aerosol analysis using a Thermal-Desorption Proton-Transfer-Reaction Mass Spectrometer (TD-PTR-MS):a new approach to study processing of organic aerosols
Aerosol analysis Thermal-Desorption Proton-Transfer-Reaction Mass Spectrometer organic aerosols
2010/3/5
We present a novel analytical approach to measure the chemical composition of organic aerosol. The new instrument combines proton-transfer-reaction mass-spectrometry (PTR-MS) with a collection-thermal...
Hydrocarbon Desorption Characteristics of Metal-impregnated Zeolite and Its Evaluation in Vehicle Test
Hydrocarbon absorbent Desorption temperature Silver BEA zeolite Diffuse reflectance UV-vis Silver valence Vehicle exhaust evaluation
2010/9/8
For the purpose of heightening hydrocarbon desorption temperature for hydrocarbon adsorption-combustion catalyst, we researched about some kinds of zeolites and of hydrocarbon adsorption elements. The...
The Role of Brønsted and Lewis Acid Sites of Vanadyl Pyrophosphate Measured by Dimethylpyridine-temperature Programmed Desorption in the Selective Oxidation of Butane
Vanadyl pyrophosphate catalyst Acidic property Dimethylpyridine Temperature programmed desorption
2009/7/24
Acidic properties of three types of (VO)2P2O7 catalysts were investigated by temperature programmed desorption (TPD) using 3, 5- and 2, 6-dimethylpyridine as probes, and the selective oxidation of but...
Equilibrium desorption isotherms of water, ethanol, ethyl acetate, and toluene on a sodium smectite clay
Clay Dynamic vapour sorption Ethanol Ethyl acetate Knudsen thermogravimetry Smectite Sorption isotherm Toluene Water
2011/11/10
Abstract Desorption isotherms for water, ethanol, ethyl acetate and toluene from a sodium smectite clay have been determined by both dynamic vapor sorption (DVS) measurements and Knudsen thermogravim...
Manganese oxide nanoparticle-assisted laser desorption/ionization mass spectrometry for medical applications
metal oxide transmission electron microscopy ionization
2010/1/19
We prepared and characterized manganese oxide magnetic nanoparticles (d =5.6 nm) and developed nanoparticle-assited laser desorption/ionization (nano-PALDI) mass spectrometry. The nanoparticles had Mn...
Desorption of benzoic and stearic acid adsorbed upon montmorillonites: a thermogravimetric study
Thermogravimetric analysis Differential thermogravimetric analysis Montmorillonites Desorption Benzoic acid Stearic acid
2011/11/11
The desorption of benzoic acid and stearic acid from sodium and calcium montmorillonites has been studied using thermogravimetric and differential thermogravimetric analysis. Desorption of benzoic aci...