Chapter 5, Problem 25RE

Interpretation Introduction

Interpretation:

The advantage of using anion exchange based on a quaternary amine $\left[{\text{resin-N}}^{\text{+}}{\left({\text{CH}}_{\text{2}}{\text{CH}}_{\text{3}}\right)}_{\text{3}}\right]$ as opposed to a tertiary amine $\left[{\text{resin-NH}}^{\text{+}}{\left({\text{CH}}_{\text{2}}{\text{CH}}_{\text{3}}\right)}_2\right]$ is to be discussed.

Concept introduction:

In ion-exchange chromatography, an ion-exchanger that may be anionic or cationic can be used in the column for separating the molecules on the basis of their net charge.

A positively charged resin serves as an anion exchanger, whereas a negatively charged resin acts as a cation exchanger.