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Perform the following extraction twice: add 1 ml of water-saturated diethyl ether, vortex the tube, and dispose of the upper (solvent) phase. Ensure that the diethyl ether is water-saturated ...

MIXTURES in several proportions of petroleum ether (boiling point 30°–60° C), diethyl ether and acetic acid have been widely used as solvents for the separation by thin layer chromatography on ...