THIN LAYER CHROMATOGRAPHY APPARATUS (T. L.C. APPARATUS) This unit is based on desaga german pattern having movable applicator with in built thickness arrangement between 0 to 2mm have the following components spreader (applicator) made of electroplated brass. perspex base size 114x23cm to support 5 glass plates size 20x20cm and 2 plates of 20x5cm. Plate rack aluminum for ten 20x20cm plates. Spotting tem plates perspex. Developing tank with lid. TLC plates set 20x20 cm or 20x10cm. Micro-pipette. Scriber for making lines. Glass sprayer with rubber bellow.