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nature : in the industrial application of chromatography separation principle components approximate nature of the method. Solution in batches so that the vertical filled adsorbent bed, the various component separation and purification. The column is filled with porous adsorbent inert solid, non-volatile liquid inert coating. The solution was separated inert liquid with the solute is the solubility of different sizes. If the adsorbed gas is the material were "absorption" phenomenon. If the adsorption of liquid substances were "extraction" phenomenon. Separation factor of several poly must factor in the allocation of the size. Common Operation : (1) head-separation, when the solution leads to continuous adsorption bed, the various solution components by adsorption capacity of different sizes, can order from bed from the other side; (2) Washing separation, into the solution, which leads to the adsorption was not vector , the order was adsorption and desorption, and then to a certain interval of segregation; (3) replacement of separation, the carrier gas into the adsorption capacity of the strongest component, followed by adsorption replacement of various components. Chromatographic separation in addition to the analysis of the wider use of technology, but also in chemical, metallurgical and environmental protection areas to be exploited.
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