Suyama K, Adachi S
J Chromatogr Sci. 1987 Mar;25(3):130-1. doi: 10.1093/chromsci/25.3.130.
A simple procedure of visualization of the separated zones of sugars on silica gel TLC plates without spray reagent is described. The plate is placed into a glass chamber filled with n-hexane. The separated sugars are then seen as opaque zones.