One – dimensional chromatography
10 mg of each sugar and the separated fractions were dissolved in 1ml of deionised water. 1μL
of each sugar solution was applied to the chromatoplate with the micropipette in the usual
manner. The chromatoplate was placed in the chamber containing the developing solvent. The
solvent system used was n-butanol - acetone - diethylamine - water (10:10:2:6 v/v/v/v). The
plates were developed in an almost vertical position at room temperature, covered with lid [5-9].
After the elution, plate was dried under warm air. The plate was sprayed with 5% diphenylamine
in ethanol, 4% aniline in ethanol and 85% phosphoric acid(5:5:1v/v/v). The plate was heated for
10’at 105°C. While drying colored spots appear. The Rf values relative to the solvent are
reported above.