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In chemical analysis: Chromatography
…that are performed on a plane. In such a case, however, the separations occur in space after a fixed time period rather than in time at a fixed location as was described for column chromatography. The separated components appear as spots on the plane.
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In chemical analysis: Liquid chromatography
…phase that is used for plane chromatography is physically held in place in or on a plane. Typically the stationary phase is attached to a plastic, metallic, or glass plate. Occasionally, a sheet of high-quality filter paper is used as the stationary phase. The sample is added as a spot…
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In chromatography: Planar chromatography
In this geometry the stationary phase is configured as a thin two-dimensional sheet. In paper chromatography a sheet or a narrow strip of paper serves as the stationary phase. In thin-layer chromatography a thin film of a stationary phase of solid particles bound…
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