The term 'stationary phase' refers to the part of chromatography that does not move. It is one of the two phases in chromatography, the other being the mobile phase. A mixture is separated by passing it through a material called the stationary phase, which is often the chromatography paper. The substances in the mixture move at different speeds because they interact differently with the stationary phase, allowing them to be separated and identified. This technique can be used to analyse and identify the components in dyes, foods, or other chemicals.
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