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Engineering Chemistry by K. Sesha Maheswaramma

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19

CHROMATOGRAPHY

19.1 INTRODUCTION

The separation of a mixture by the distribution of its components between a mobile and a stationary phase is known as chromatography. Here, the mobile phase is solvent and stationary phase is column packing material.

Chromatography is a valuable analytical tool as it can separate mixture components. It is also a useful technique to obtain qualitative and quantitative information about each component.

The term “chromatography” is applied to a process in which mixture components are separated by differential migration. The differential migration is caused by flow of mobile phase.

It may also be defined as follows:

Chromatography comprises a group of techniques that are used to separate mixture components by the ...

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