Page 69 - Applied Pharmacognosy

Classification of Chromatographic Techniques

According to the Mode of Retention

6. Zone Electrophoresis. Generally used for
separation of ionized
✓ Stationary phase: a support (filter

paper) moistened with buffer.

✓ Mobile phase: liquid. substances as proteins.

✓ Electrophoresis refers to the movement of charged particles

in a fluid under the influence of an electric field.

Sample Filter paper

- - ++

Anode (+) (-) Cathode

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