Abstract: An apparatus for providing temperature control and agitation to a plurality of reaction vessels comprises a plurality of elastic receptacles on a block, each receptacle supporting a reaction vessel below its neck, and, a plurality of elastic couplings, each coupling retaining a reaction vessel at its neck section. A flow channel is provided within the block to transfer a liquid temperature control medium to the reaction vessels. The flow channel is routed to each receptacle individually, thereby supplying the medium directly to the corresponding reaction vessel. A shaking arrangement is provided to agitate the reaction vessels by moving the receptacles horizontally relative to the couplings. The greatest deflection of each reaction vessel occurs at its base, while the neck sections are subjected to slight movement.

Abstract: A device according to the invention for analyzing substances by means of thin layer chromatography comprises a solvent trough (1) with two solvent channels (11, 12). Two wall plates (4, 5) are mounted in the solvent trough (1), enabling thin layer plates (2, 3) to be arranged standing obliquely with respect to the horizontal in the solvent channels (11, 12). The substance to be analyzed can thus be dropped or applied onto the thin layer plates (2, 3) from above, and solvent can be supplied to the solvent channels (11, 12) from above at a solvent supply point (111, 121). The upward migration of components of the substance to be analyzed can thus be started without the position of the thin layer plate (2, 3) needing to be changed for this purpose.