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Plate Number

Definition

An efficiency measure estimated from retention and peak width under a stated convention.

Related terms

Mobile Phase
The phase that carries the analyte through the stationary phase. A solvent system in TLC and HPLC, an inert carrier gas (nitrogen,...
Resolution
Smallest distance between two points that can still be seen as separate. Given by Abbe's d = 0.61 λ / NA. Light...
Rf
In planar chromatography, spot migration distance divided by solvent-front migration distance from a common origin.
Stationary Phase
The fixed phase across which the sample moves. Silica gel on TLC/HPTLC plates, a packed or capillary column coating in GLC, a...
Visualisation
A detection step that makes separated zones observable, with its own selectivity and sensitivity.

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