planar chromatography
Quick Summary
Planar chromatography is a method where the stationary phase is arranged as a two-dimensional sheet. This includes techniques like paper chromatography, which uses paper as the stationary phase, and thin-layer chromatography, where a thin film of stationary particles is coated onto a plate.1
In these methods, a mobile phase moves through the stationary phase, typically by capillary action, carrying the sample components with it. The separation is based on how different components interact with the stationary and mobile phases. Migration is often measured using the retardation factor (Rf) value, which compares the distance a solute moves to the distance the mobile phase front moves.12
Ask Britannica AI about this topic
Britannica doesn't have a full article on this topic, so we've curated a list of our relevant coverage.
chemical analysisChromatography…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.
Read More…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.
Read More- chemical analysisLiquid 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…
Read More…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…
Read More - chromatographyPlanar 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…
Read MoreIn 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…
Read More