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Tomographic skills are commonly used to analyze death experiments in modern life. Any tomography goes through two phases. First of all, the stationary phase is fixed on the bracket, and the other is rolling through the stationary phase, because the physical and chemical properties of each component in the model is made, such as solubility and adsorption capacity or shape or molecules with the nature of the charge and the number or special groups on the surface of the molecule or molecular weight, etc.) has the different stationary phase and mobile phase separation and unity. When debris passes through the porous support body, they are stationary phase and mobile phase with different thrust resistances, each moving at different speeds, supporting their distribution in different areas, so that each component can be peacefully resolved.
Adsorption means that something can point to its presence from the solution, the solute concentration. The chemical structure of a substance or solvent of adsorbent strength and the nature of the absorbent. When solvents in the innovative reputation of solvents, the affinity of adsorbent for adsorbent material changes, so that adsorption of adsorbent material is removed, and this relief process is called "eluting" or "spreading".
Tomographic adsorption is adsorption to glass column (column chromatography) or glass plate (thin layer chromatography). Solvent adsorption capacity can be affected by infection and changes in sample material adsorption, washing changes of eluate, adsorption capacity, adsorption and eluate advance. When the material is a new adsorbent desorption moves forward, encounter from the front. The adsorbed material is then released from the eluent. Through such a process of adsorption desorption, desorption, the material can move in the direction of eluent movement. The speed of movement depends on the adsorbent's adsorption capacity. Due to the different adsorption capacities of each component in the sample, the parts gradually separated during the elution process will move at different velocities, which is #bth1bth adsorption
The basis of the # process. Shanghai science & technology co., LTD. Offers standard solution of 298-00-0 | methyl parathion, methyl parathion, 500g/ml, solvent chloroform, commodity no. : c16-p10773-1.2ml, price: 155 yuan.
The solid adsorbent used in the experiment was alumina or magnesium silicate or calcium phosphate or calcium hydroxide or active calcium, sucrose, starch and cellulose. A mixture of commonly used eluent ethane and phenyl ether or chloroform, ethanol or acetone, or water and organic solvents. Chromatography is commonly used in lipids or steroids or carotenoids and chlorophyll precursors and the adsorption separation of polar and non-polar organics is weak. Shanghai match technology offers 67-64-1, acetone, acetone, high performance liquid chromatography, commodity number: c28-a1213-4l, price 700 yuan.
This suggests that virtually all solutes are tomographic media, and that if the inert material has a local adsorption capacity, all other examples of adsorption in tomographic are more or less preserved, except for itself.
What are the methods for isolation and purification
Brief description of heat removal by chromatography