There is disclosed apparatus for rapidly transferring samples for analysis by thin layer chromatography from a sample container to the chromatography plate and in which a chromatography plate is supported in a housing through which drying air, preferably heated, passes over the working surface of the...http://www.google.fr/patents/US4351800?utm_source=gb-gplus-shareBrevet US4351800 - Thin layer plate chromatography apparatus