Abstract The modern PLOT column is invariably based on mechanisms other than simple partitioning and involves a range of different types of adsorbents. Numerous applications have been developed on PLOT columns, all directed to the separation of gases and volatile sample components. This article describers the various types of PLOT columns and their possible applications.
LevelBasic
PLOT 
columns are open tubular columns coated with a layer of solid porous material on the inside column wall.
The main reason for including a porous layer inside the column was to enable higher stationary phase loading to increase retention factors and subsequently to increase the resolution of volatile compounds.
The modern PLOT column is invariably based on mechanisms other than simple partitioning and involves a range of different types of adsorbents. Numerous applications have been developed on PLOT columns, all directed to the separation of gases and volatile sample 
components.
PLOT column application areas
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