Ion exchange chromatography separates the components of a mixture based on their charge, in addition to or instead of their size. In essence, positively (cations) or negatively (anions) charged ions are separated using different stationary phases and different pH mobile phases.

Does chromatography separate simple mixtures?

Chromatography is a technique carried out in laboratories to separate the components in simple or complex mixtures. ... All the different types feature a stationary phase, usually a solid, and something to carry the complex mixtures through the stationary phase, called the mobile phase, usually a gas or a liquid.

Why do Colours separate in chromatography?

The reason why the colors separate has to do with the chemicals that make up the color, the water, and the paper. The chemicals that make up the color are called pigments. Some pigments attach to water better than others so they move further through the paper before sticking.