In chromatography, resolution is a measure of the separation of two peaks of different retention time t in a chromatogram.
Expression Chromatographic peak resolution is given by
where tR is the retention time and wb is the peak width at baseline. The bigger the time-difference and/or the smaller the bandwidths, the better the resolution of the compounds. Here compound 1 elutes before compound 2.
If the peaks have the same width
.
Plate number
The theoretical plate height is given by
where L is the column length and N the number of theoretical plates. The relation between plate number and peak width at the base is given by
. See also Image resolution Resolution (mass spectrometry) Van Deemter equation
References
External links IUPAC Nomenclature for Chromatography