Simple devices for the application of samples as narrow  streaks for thin-layer chromatography.
The construction and use of devices, based on the design of Achaval and Ellefson, for the application of samples as 1-12 cm streaks at the origin of thin-layer chromatograms is described. These devices are simple to make, and rapid and quantitative in their operation.
D002855:Chromatography, Thin Layer / Q000295:instrumentation*