The rf value is shorthand for the retention value of a substance. It is used in chromatography to determine the components of an unknown sample.
The largest Rf value is 1, which occurs when the compound remains at the origin of the chromatogram and does not move at all. The smallest Rf value is 0, which happens when the compound moves with the solvent front and does not adhere to the stationary phase.
The 4 component of linear dimensions are: 1. Dimension Lines 2. Extension Lines 3. Arrowheads 4. Numeric Value of dimension
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RF - Republique Francaise (= French Republic).
It means that the component will move with the solvent.
the mobility of any component in a particular solvent is referred to as its RF value. Mathematically, RF value = distance travelled by solute/ distance travelled by the solvent
Measure the distance from your marked pencil line to the solvent front. Also measure the distance fomr the marked pencil line to the middle of the spot, and divide this by the first distance. This value will be between 0 and 1.
the rf value equals the distance of the component from the starting point divided by the distance of the solvent from the starting point.
1, if it completely solube in the solvent, it will travel with it, right to the solvent front.
RF value (in chromatography) The distance travelled by a given component divided by the distance travelled by the solvent front
3.2/8 = 0.4......do check it....
Rf is about .45
The Retention Value(Rf) of a chemical species is the relative distance a particular component moves in relation to the distance the solvent front moves.
The Rf value depends on the type of plate used and solvents.
Saturation affects the RF value in a significant manner. With saturation of the air, this will result into high RF value which cause poor resolution.Ê