Chapter 25, Problem 25.35P

Interpretation Introduction

Interpretation:

The value of k for peak 5 at $\text{50\%}\text{B}$ has to be calculated. The retention time for peak 5 at $\text{40\%}$ has to be predicted and observed and predicted values have to be compared.

Concept Introduction:

Retention factor:

The time that is necessary to elute that peak minus the minimum possible time for the travel of unretained solute through the column is called as retention factor. The retention factor is calculated using the equation,

$\text{k=}\frac{{\text{t}}_{\text{r}}{\text{-t}}_{\text{m}}}{{\text{t}}_{\text{m}}}$

Where,

${\text{t}}_{\text{r}}$ = retention time

${\text{t}}_{\text{m}}$ = minimum possible time for the travel of unretained solute through the column.