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Thin-layer chromatography is a useful and environmentally friendly analytical tool still with potential for the future. As a planar chromatographic technique has a wide spectrum of applications and it can be complimentary to other chromatographic techniques like, for instance, high performance liquid chromatography. Separation on thin-layer was performed for the very first time by Izmailov and Shraiber in 1937-1938. They called the new technique spot or drop chromatography and used it for separation of selected pl...