Chromatography Band Broadening in Columns

Chromatography band broadening in columns explains why separated solute zones spread out as they move through a column. The rate theory of chromatography gives a quantitative way to describe the shape and width of elution bands. These bands follow a Gaussian profile, which means they form a smooth bell-shaped curve as the mo...

Unlike plate theory, the rate theory describes column efficiency with a realistic view of the processes inside the chromatographic column.

As the solute elutes through the column, the mobile phase flow rate affects the band shape and width.

The optimal flow rate can be found by the van Deemter equation, which relates the column eff...