How can separate dyes present in smarties?

Separate dyes present in Smarties can be analyzed using chromatography, a technique that allows for the separation of components in a mixture. When Smarties are dissolved, the different dyes can be carried by a solvent through a stationary phase (like paper or a gel). As the solvent moves, the dyes travel at different rates due to their varying affinities to the stationary phase, leading to distinct bands or spots that can be visualized and identified. This method effectively illustrates the composition of food colorings used in the candies.