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What criterion is followed for the selec...

What criterion is followed for the selectrion of the stationary phase in chromatography?

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The stationary phase acts as absorbent and may have the following characteristics :
(i) It should have high and selective adsorption power.
(ii) It should be finely divided to offer greater surface area for adsorption.
(iii) The mechanical stability of stationary phase must be high to prevent the formation of dust which might be deposited in the channels of packing.
(iv) It should not react chemically either with the sample components or with the eluting solvents.
(v) It should be pure.
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MODERN PUBLICATION-GENERAL PRINCIPLES AND PROCESSES OF ISOLATION OF ELEMENTS-NCERT FILE (Ncert Textbook Exercises)
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