Finally, the film also demonstrates how to calculate Rf values, another aspect of chromatography that students can find challenging. Suggested activities: ...

One way they can do this is to use a process called chromatography. In the activity below, you can try chromatography to separate colors in a mixture of food coloring! Here's what to do: Place a ...

Chromatography in Greek means to ‘write with colors.’ It is a versatile separation technique developed in 1903 by Mikhail Tswett, a Russian botanist. He separated colorful plant pigments using ...