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Abstract
An improved method for developing thin layer chromatography plates in the anticircular mode is described. The apparatus consists of two glass dishes arranged concentrically. The outer dish has a diameter of 98 mm × 15 mm deep, and the inner one a diameter of 92 mm × 13 mm deep. The inner dish rests on four small pieces of glass (5 × 5 × 2 mm). A paper wick, (16 mm wide × 1.5 mm thick) sits between the two dishes and transfers the solvent from the outer dish to the thin layer plates. The plate sits on the paper wick with the adsorbent facing down. To ensure an even solvent flow, the dishes are situated on a platform which has adjustable legs, and an horizontal level. Up to 50 samples can be analyzed on one 10 × 10 cm plate in 5 minutes. Less than 10 ml of solvent are needed.