Sometimes a scientist needs to figure out what is in a certain mixture of substances. One way they can do this is to use a process called chromatography. In the activity below, you can try ...

Chromatography is a technique used to separate soluble substances that have been mixed together. It’s normally used to separate coloured mixtures, like food colourings. We are going to use ...

More on the prominence of petit verdot in a moment. The professional panel of judges for the Governor's Cup competition reviewed more than 490 entries, commenting on each wine’s appearance ...

Gas chromatography is a technique used to separate mixtures of gaseous chemical compounds based on differences in the compounds’ relative affinities for a solid (gas-solid chromatography ...

Exclusion chromatography can be used to separate molecules on the basis of size 1,2. The technique described here, which uses gel filtration to separate high-molecular-weight DNA from smaller ...