short note on choice of solvent system in chromatgraphy
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in chromatography ..petroleum ether is taken as solvent
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Choice of Solvents for Paper Chromatography. ... For the purpose use can be made of a single pure solvent, undiluted solvent with water or a mixture of miscible solvents. The greater the distance between the resolved spots (measured by Rf values) better is the solvent mixture combination
Choosing a Solvent System. ... Column chromatography, particularly flash chromatography, is normally carried out with a mixture of two solvents as the mobile phase: one polar, one non-polar. Occasionally, a single solvent can be used or a mixture of three solvents is needed
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