Separation without TLC

Ion exchange resins have occasionally been used to adsorb fiavones from aqueous solutions they can then be eluted with alcohol. Weakly polar substances have been separated by partition chromatography on silica gel, impregnated with dimethyl sulphoxide [156] benzene was used as solvent. An interesting separation is that of betacyanins with an aqueous potassium acetate solution on polyamide [198]. 

Paper Chromatography. Paper chromatography has been and is still being widely applied to separation of the compoimd classes treated 

Gas Chromatography. Simple phenols and phenol carboxylic acids can be subjected to GC-analysis, directly or after methylation. Good separations of the trimethyl silyl ethers of higher boiling compounds are often obtained [71]. 

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