Dispersion in Chromatography Columns - The Alternative Axes of a Chromatogram > Page 4

 

 

 Figure 1 Alternative Axes of a Chromatogram

 

As the curves are describing the same chromatogram, by proportion, the ratio of the variance to the square of the retention, in the respective units in which the independent variables are defined, will all be equal.

 Consequently,          

 

where  sv, sx and st are the standard deviations of the elution curves

                                when related to the volume flow of mobile