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矿物表面化学
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  surface chemistry of minerals
    On the basis of determination and adsorption experiments of fluorine, surface chemistry of minerals and soil chemistry of samples, geochemical characteristics and migration enrichment mechanism of fluorine in the rock, soil and water system have been studied.
    通过对研究区碳酸盐岩—土—水系统中氟的系统测定和吸附实验,结合矿物表面化学和土壤化学研究,揭示了岩溶地区岩—土—水系统中氟的地球化学特征和迁移富集机理。
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  “矿物表面化学”译为未确定词的双语例句
    Surface chemical behavior of 2,4-dichlorophenol in presence of metal oxides
    2,4-二氯苯酚的矿物表面化学行为研究
短句来源
    SURFACE CHEMISTRY AND ADSORPTION MECHANISM OF IRON OXIDE MINERALS FROM THE LATERITE DEVELOPED ON THE CARBONATE ROCK
    碳酸盐岩红土中氧化铁矿物表面化学特征及其吸附机理研究
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  mineral surface chemistry
A common tenet in mineral surface chemistry is that structural and chemical defects are focal points for both surface and bulk reaction.
      
In so far as the mechanism of interaction is affected by mineral surface chemistry, so is the nature of the fractionation process.
      
The data indicate that fractionation behavior of NOM is dependent on mineral surface chemistry in addition to sorbent affinity for organic C.
      
The large difference in NOM sorption between goethite and birnessite is attributed to differences in mineral surface chemistry.
      


With X ray photoelectron spectroscopy (XPS) technique, surface chemistry and adsorption mechanism of iron oxide minerals (goethite and hematite) from the laterite developed on carbonate rock have been studied. XPS of the mineral surface reveal an important fact that the chemical properties (including composition, incorporation and structure and so on) between the surface and body of the minerals are highly heterogeneous. The heterogeneous characteristics of the mineral leads to an obvious increase in active...

With X ray photoelectron spectroscopy (XPS) technique, surface chemistry and adsorption mechanism of iron oxide minerals (goethite and hematite) from the laterite developed on carbonate rock have been studied. XPS of the mineral surface reveal an important fact that the chemical properties (including composition, incorporation and structure and so on) between the surface and body of the minerals are highly heterogeneous. The heterogeneous characteristics of the mineral leads to an obvious increase in active energy of surface chemical reaction of minerals and is an important geneses of kinetics of minerals. It is the specific adsorption and desorption of goethite and hematite that lead to mobilization and pollution of F and As and became an important mechanism of the environmental pollution in the laterite.

应用XPS技术,首次较系统地研究了碳酸盐岩红土中氧化铁矿物表面化学特征及其吸附机理.氧化铁矿物表面的XPS分析表明,矿物表面和整体之间在化学成分、状态和结构等方面存在明显差异,矿物表面的这种非均匀性特征是其表面化学反应的重要动力学起因.针铁矿和赤铁矿表面对氟、砷等元素的选择性吸附及其解吸作用是造成红土中氟、砷等元素活化迁移和污染的重要机理

On the basis of determination and adsorption experiments of fluorine, surface chemistry of minerals and soil chemistry of samples, geochemical characteristics and migration enrichment mechanism of fluorine in the rock, soil and water system have been studied. The contents of fluorine in rock, soil and water system are characterized by the fluorine enrichment in deep groundwater (under the depth of 100m) and soil, but there are low fluorine contents (less than 0.5 mg/l) in shallow groundwater and surface water....

On the basis of determination and adsorption experiments of fluorine, surface chemistry of minerals and soil chemistry of samples, geochemical characteristics and migration enrichment mechanism of fluorine in the rock, soil and water system have been studied. The contents of fluorine in rock, soil and water system are characterized by the fluorine enrichment in deep groundwater (under the depth of 100m) and soil, but there are low fluorine contents (less than 0.5 mg/l) in shallow groundwater and surface water. Adsorption and desorption of fluorine at the surface of goethite is an important mechanism for fluorine migration and enrichment in the soil water system of the karst areas.

通过对研究区碳酸盐岩—土—水系统中氟的系统测定和吸附实验,结合矿物表面化学和土壤化学研究,揭示了岩溶地区岩—土—水系统中氟的地球化学特征和迁移富集机理。黔中岩溶地区深层地下水(100m以下)和土层具有高氟异常特征,而浅层地下水和地表水含氟较低(大多在0.5mg/l以下)。以含石膏碳酸盐岩为主的三叠纪海相地层是该区土水中氟的主要来源。土层中针铁矿表面对氟的专性吸附及其解吸作用是岩溶地区土水系统中氟迁移和富集的重要机理。

 
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