“…Reuseable plates have been prepared by spraying molten adsorbents onto rigid supports (604). Special equipment for TLC includes: various sample applicators (77,321,496,1345,1760,2057) and application chambers (77,365,1421), narrow developing chambers (309,739,881,1591,1724,2177) and an adsorbent sandwich (195S), self-contained chambers of adsorbent layers in test tubes (126, 2222) or funnels (1382), sorbentcovered microscope slides (92,1390,1860) and glass rods (509), apparatus for starting and stopping development (2054) and for circular (2110) or centrifugal TLC (1058,1703), a cover plate for staining at elevated temperatures (1593), a high-resolution zonal scraper (1908)(1909)(1910), suction apparatus for collecting zones (648, 1785), and elution set-ups (648,1207,1760,2142).…”