Which method is used to separate drugs from blood?

Options

A. Fractional distillation
B. Crystallisation
C. Chromatography
D. Distillation

Explanation

**Step-by-Step Solution:**

1. **Understanding the Question**: The question asks which method is used to separate drugs from blood.

2. **Identifying the Correct Method**: The video transcript indicates that the method used for this separation is chromatography.

3. **Defining Chromatography**: Chromatography is a technique that separates the components of a mixture based on their different solubilities in a particular solvent.

4. **Explaining the Principle**: The separation occurs because the drugs and the volatile components of blood have different solubilities. This difference in solubility is the basis for their separation using chromatography.

5. **Evaluating Other Options**: The transcript discusses other methods such as fractional distillation, crystallization, and distillation, explaining why they are not suitable for separating drugs from blood:
- **Fractional Distillation**: Separates mixtures based on boiling points.
- **Crystallization**: Separates pure solids from solutions in crystal form.
- **Distillation**: Involves converting liquid into vapor and then back to liquid.

6. **Conclusion**: Based on the information provided, the correct answer to the question is that chromatography is the method used to separate drugs from blood.

**Final Answer**: Chromatography is the method used to separate drugs from blood.

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