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Hydrocarbons on RP-TLC

GBALA
in Organic Chemistry

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I like to check one of my fraction which was eluted with 100% hexane from column and the content is high and showing single spot on normal phase TLC. The spot lies on the solvent front as the mobile phase solvent chosen is 100% hexane. So it could be mixture of hydrocarbons. I would like to know how many compounds this mixture does contain. If reverse phase TLC would be an option what is the best mobile phase solvent system to achieve good resolution? Help would be much appreciated.

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