CHROMATOGRAPHIC SHEET OF LAYER FOR PRESSURIZED LAYER CHROMATOGRAPHIC APPARATUS.

摘要

PCT No. PCT/HU80/00006 Sec. 371 Date Jul. 15, 1981 Sec. 102(e) Date Jul. 15, 1981 PCT Filed Dec. 5, 1980 PCT Pub. No. WO81/01746 PCT Pub. Date Jun. 25, 1981.An adsorbent layer (stationary phase) for a pressurized layer chromatographic apparatus, for the development of linear chromatogram, is sealed at the edges by impregnation. For the purpose of solvent control some of the adsorbent material is removed in one or several zones of the adsorbent layer near the place of solvent admission, or one or several baffle plates or wires are arranged behind the place(s) of sample application, or if necessary, the adsorbent layer is provided with a conventionally formed concentration zone in the area of the solvent admission. As a result of the impregnation, the migrating solvent composite does not escape at the edges of the adsorbent layer according to the invention in case of overpressure. As a result of the removal of adsorbent material, or the arrangement of baffles or wires, or the application of a concentration zone, the solvent migrates with a straight-line front.