What is the principle of chromatographic separation ?

Explanation

### Step-by-Step Text Solution

1. **Definition of Chromatography**: Chromatography is a technique used for separating components of a mixture based on their different interactions with a stationary phase and a mobile phase.

2. **Principle of Separation**: The principle of chromatographic separation is based on the differential absorption of the components of a mixture. When a mixture is applied to a surface or into a solid medium (the stationary phase), the components of the mixture interact differently with this medium.

3. **Mobile Phase**: The mixture is typically dissolved in a liquid or gas, which acts as the mobile phase. This mobile phase carries the mixture through the stationary phase.

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