Chapter 26, Problem 26.42P

Interpretation Introduction

Interpretation:

The plate height in given capillary electrophoresis has to be calculated.

Concept introduction:

The number of plates in a column is calculated from

$\begin{array}{l}\text{N}\text{=}\frac{\text{5}\text{.55}{\text{t}}_{\text{r}}{}^{\text{2}}}{{\text{w}}_{\text{1/2}}{}^{\text{2}}}\\ \\ {\text{t}}_{\text{r}}\text{is}\text{retention}\text{time}\\ \\ {\text{w}}_{\text{1/2}}\text{plate}\text{width}\\ \\ \text{N}\text{is}\text{number}\text{of}\text{plates}\text{in}\text{column}\end{array}$

The plate height is given as

$\text{H}\text{=}\frac{\text{L}}{\text{N}}$

Where,

L is length of the column.

N is number of plates in column

H is plate height.