Why is H or HETP (Height Equivalent to a Theoretical Plate) calculated as σ^2/L instead of 2σ/L?

The equation of the plate height is given as H = σ^2/L where σ is standard deviation in a normally distributed curve (representing width of analyte peak) and L is the length of the column. Why is...

01 January 2020 1,004 7 View