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Separating by speed

One widely used method that scientists use to identify the parts in a solution is known as chromatographyA method for separating mixtures into their component parts (into their 'ingredients') by flowing the mixture over another substance and noting the differences in attraction between the substance and each component of the mixture.. Chromatography is a technique that separates components based on the rate each moves over a specific material. Each component has properties that determine its movement. Chromatography has many uses. It is commonly used in laboratories to isolate new compounds, analyze differences between environmental samples, and identify drugs from urine or blood samples.

In chromatography, a gas or liquid mixture travels over an unmoving substance. The unmoving substance chosen depends on the type of mixture. Paper...

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1. Introduction
2. Mixing it up
3. Separating by size
4. Separating by speed
5. What is it?
6. Experiment 1 - Chromatography: Can you identify a pen from the way its colors separate?
7. Experiment 2 - Identifying a Mixture: How can determining basic properties of a substance allow you to identify the substances in a mixture?
8. Design Your Own Experiment