FRACTIONATION相关论文
Fractionation and fixation of rare earth elements in soils:Effect of spiking with lanthanum,cerium,a
Industrial and agricultural activities lead to the release of rare earth elements (REEs) in wastewater and aquatic ecosy......
A gold tube simulation device was used to study the cleavage of representative compounds into gas.The goal of this study......
Fractionation and bioavailability of heavy metals in surface sediments in the chemical industrial pa
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Redistribution and mobility of residual Cd, Pb and Zn in soils leached with multiple different extra
CaCl2,citric acid(CA),EDTA,HCl and FeCl3 were employed to assess Cd,Pb and Zn removal after single soil and multiple soi......
Due to the awareness of fossil fuel depletion and global warming,biorefinery for production of biofuels and valuable pla......
Fractionation is an effective technology to maximize the utilization of lignocelluloses for the production of chemicals ......
The main interest of this study is to assess whether uranium mineral deposits located in the San Marcos outcrops (NW of ......
Elemental distribution in depth as well as their fractionation related to particle size, in phosphog
Phosphogypsum is a by-product obtained in the production of phosphoric acid,where a sedimentary phosphate rock is used a......
Selenium Fractionation and Speciation in Paddy Soils and Accumulation in Rice under Field Conditions
Soils, as well as paddy tissue samples, were collected in the Se-rich area of Jinhua County, Zhejiang Province, Chin......
Nitrogen isotopic fractionation of particulate organic matter production and remineralization in the
During the 29 th Chinese National Antarctic Research Expedition,spatial variations in nitrogen isotopic composition of p......
Zircon LA-ICPMS study and petrogenesis simulation of Dahuabei pluton in the Wulashan area,Inner Mong
Dahuabei pluton in the Wulashan area,Inner Mongolia,is an alkaline and peraluminous granitic pluton.LA-ICPMS U-Pb dating......
The variation of stable isotope ratios in natural waters provides valuable information that can be used to trace water m......
Glass and Mineral Chemistry of Northern Central Indian Ridge Basalts:Compositional Diversity and Pet
The glass and mineral chemistry of basalts examined from the northern central Indian ridge (NCIR) provides an insight in......
In the 80’s of last century, based on the advances in natural gas exploration practice, the concepts of bio-thermocatal......
Based on the concentration and distribution pattern analysis of the rare earth elements (REEs) at the Shell Bar section ......
Quantitative assessment of gas washing of oils in the Tazhong area of the Tarim Basin,Northwest Chin
Gas washing has been known in the Tazhong area of the Tarim Basin,but its quantitative assessment has not yet been repor......
通过室内土壤培养实验,研究添加沸石、磷矿粉和石灰3种改良剂对污染土壤Pb、Zn化学形态和生物可给性的影响.结果表明,土壤Pb主要以......
通过室内土培实验,分析添加赤泥、沸石、油菜秸秆、磷矿粉和生物炭等5种改良剂对矿区土壤As的化学形态和生物可给性的影响.结果表......
Large selenium isotopic variations and its implication in the Yutangba Se deposit, Hubei Province, C
硒同位素的比率在 Yutangba Se 存款被测量了，湖北省，中国。结果证明三角洲 ~(82/76 )Se_(NIST ) 价值每千每千从 -12.77 变化到 4.9......
聚烯烃合金是通过釜内聚合制备的多组成的聚烯烃材料。本文分别从聚烯烃合金的分级方法、组分和性能等方面对聚烯烃合金结构与性能......
It has been well-known that the optimum reflux ratio and the optimum packing size are importantcharacteristics of a pac......
An unusual isotopic fractionation of boron in synthetic calcium carbonate precipitated from seawater
Inorganic calcium carbonate precipitation from natural seawater and saline water at various pH values was carried out ex......
The diffusion-based micro flow of a T-sensor with three inlets in which various species are injected was simulated numer......
Three series of laboratory vaporization experiments were conducted to investigate the carbon isotope fractionation of lo......
The Impact of Aqueous Medium on Gas Yields and Kinetic Behaviors of Hydrogen Isotope Fractionation d
In order to recognize the impact of aqueous medium on gas yields and the kinetic behaviors of hydrogen isotope fractiona......
Component fractionation of wood-tar by column chromatography with the packing material of silica gel
Bio-oil can be an important fuel resource for automobiles in the future,while its complex composition restricts the dire......
Microstructure Characterization of Short-chain Branching Polyethylene with Differential Scanning Cal
A series of the copolymers of ethylene with 1-hexene(M1–M9) synthesized by metallocene catalyst Et[Ind]2ZrCl2/MAO was s......
The compositional heterogeneity of two impact polypropylene copolymers(IPCs) was studied by a combinatory investigation ......
Calibration Curve Establishment and Fractionation Temperature Selection of Polyethylene for Preparat
A series of copolymers of ethylene with 1-hexene synthesized using a metallocene catalyst are selected and mixed. The bl......
A low-density polyethylene(LDPE) resin with excellent processing and film-forming properties is fractionated through tem......
Bioassay-guided fractionation of the diethyl ether extract of the liverwort Asterella angusta led to the isolation of tw......
Comparison of Chain Structures between High-speed Extrusion Coating Polyethylene Resins by Preparati
Two polyethylene(PE) resins(samples A and B) are synthesized as high-speed extrusion coatings with similar minimum coati......
Characterization of colloidal arsenic at two abandoned gold mine sites in Nova Scotia, Canada, using
Asymmetric flow-field flow fractionation-inductively-coupled plasma-mass spectrometry was used to determine whether coll......
Disequilibria between ~(210)Po and ~(210)Pb in surface waters of the southern South China Sea and th
Activities of the naturally occurring radionuclides, 210Pb and 210Po, were measured in both dissolved (0.45 μm) phases ......
Although Mo isotopes have been increasinglyused as a paleoredoxproxy in the study of paleo-oce-anographic condition chan......
Compound Specific Isotope Analysis (CSIA) is a newly developed method that is able to measure the isotopic composition o......
LA-ICPMS zircon U-Pb dating has been greatly advanced and widely applied in the past decade because it is a cheap and fa......
An anomalous isotope effect exists in many heavy element isotope systems(e.g., Sr, Gd, Zn, U). This effect used to be ca......
Low Temperature lgfo_2-pH Diagrams of Sulfur Isotope Evolution in an Equilibrium Hydrothermal System
According to Sakai-Ohmoto’s theory regarding the evolution of sulfur isotopes in hydro-thermal systems,in conjunction ......
On the Chemical Evolution of Upper Mantle of the Early Earth——An Experimental Study on Melting of th
In troductionRelatively old ages of chondrites(normally around 4.5 Ga)suggest that their parent bodies didnot experienc......
Experimental data show that the Ce-family REE are more accessible to hydrolysis than the Y-familyREE,and the optimum pH......
Molecular hydrogen isotope analysis preformed on modern and fossil plants has made a significant impact on diverse resea......
Uranium is an element with a large radius and atomic mass, so its oxides are consid-ered to be of very low δ~(18)O val......
Geochemical evidence for the recognition of the Carboniferous condensate by evaporative fractionatio
The conventional understanding of condensate is that almost all condensates derivedfrom sapropelic kerogen are the prod......
In the late 1980s the introduction of a new isotopic analytical technique of GC-C-MS that can determine the carbon isot......
DISTRIBUTION OF STRONTIUM IN UPPER SINIAN CARONATE ROCKS OF NORTHERN MARGIN OF MIDDLE YANGTZE PLATFO
The sedimentation of Upper Sinian carbonate rocks in northern margin of the middle Yangtze platformtook place in two fac......
STABLE oxygen isotope is not only an effective approach to tracing water-rock interactions, but also canprovide much in......
1 Background THE C_i/C_a, the ratio of intercellular and ambient C0_2 partial pressure, is internally controlled by the......
