Verbesserung und automatische Detektion des D�nnschicht-Chromatogramms

High Pressure Liquid Chromatography

“…The value of D for silica is found to decrease with decreasing d, (4). This cquation affords a simple basis for comparing column efficiencies obtained by different workers, using any set of experimental conditions.…”

“…Many workers have noted, however, that for dp < 100 p, H increases (4,17,18). However, both terms are minimized by decreasing d,.…”

Diffuse Reflectance Spectroscopy

“…Particular popularity for spectral reflectance is foreseen in the field of chromatography, where in situ reflectance together with fluorescence techniques will be the major tools to make paper and thin-layer chromatography quantitative methods of analysis. In conjunction with recent developments in thin-film chromatography and other micro TLC techniques, 316 microscope reflectance methods such as described in section IV C 5 will become important. Development of better-controllable chromatographic techniques will be necessary to make full use of the excellent quality of chromatogram spectrophotometers that have been developed during the past two to three years.…”

Electrochemical Detection in Thin-Layer Chromatography (TLC): A Review and Application of Direct On-Plate Square-Wave Anodic Stripping Voltammetry for TLC

“…In the first report [15], a TLC plate having a silica gel stationary phase was scored into lanes and sandwiched between two glass plates. Small holes were drilled in the top glass plate over two of the lanes.…”