solvent front

См. также в других словарях:

• solvent front —    The final point reached by the mobile phase as it flows up or across the TLC plate during development of the chromatogram …   Forensic science glossary

• front — The position of the leading edge of the solvent in chromatography …   Medical dictionary

• Thin layer chromatography — Separation of black ink on a TLC plate Acronym TLC Classification Chromatography Other techniques Related …   Wikipedia

• chromatography — chromatographer, n. chromatographic /kreuh mat euh graf ik, kroh meuh teuh /, adj. chromatographically, adv. /kroh meuh tog reuh fee/, n. Chem. the separation of mixtures into their constituents by preferential adsorption by a solid, as a column… …   Universalium

• Paper chromatography — Chromatography jar Classification Chromatography Other techniques Related Thin layer chromatography Paper chromatography is a …   Wikipedia

• Retardation factor — In chromatography, a retardation factor (Rf) (also known as retention factor) describes the ratio of time spent in the stationary phase relative to time spent in the mobile phase. It can be mathematically described by the following ratio: R f =… …   Wikipedia

• Rf, RF — Symbol denoting movement of a substance in paper chromatography relative to the solvent front ( i.e., retardation factor); equal to the migration distance of a substance divided by the migration …   Medical dictionary

• Desorption — is a phenomenon whereby a substance is released from or through a surface. The process is the opposite of sorption (that is, either adsorption and absorption). This occurs in a system being in the state of sorption equilibrium between bulk phase… …   Wikipedia

• RF — Rheumatoid factor. Rheumatoid factor is an antibody that is measurable in the blood. It is commonly used as a blood test for the diagnosis of rheumatoid arthritis. Rheumatoid factor is present in about 80% of adults (but a much lower proportion… …   Medical dictionary

• retardation factor — (RF)    The ratio of the distance traveled by the solute spot’s center divided by the distance traveled by the solvent front, both measured from the origin …   Forensic science glossary

• printing — /prin ting/, n. 1. the art, process, or business of producing books, newspapers, etc., by impression from movable types, plates, etc. 2. the act of a person or thing that prints. 3. words, symbols, etc., in printed form. 4. printed material. 5.… …   Universalium