Chromatography (noun)

1. A technique used to separate and analyze the components of a mixture, based on the different ways in which the components interact with a stationary phase and a mobile phase.
2. A method of chemical analysis used to separate and identify the components of a mixture, based on their relative ability to adsorb or partition between a stationary phase and a mobile phase.

Origin:

The word "chromatography" is derived from the greek words "chroma" meaning color and "graphia" meaning writing. it is first recorded in english in the 19th century.

Examples:

1. Gas chromatography is a technique used to separate and analyze volatile compounds.
2. Paper chromatography is a technique used to separate and analyze pigments.
3. Chromatography is commonly used in the field of biochemistry to separate and analyze proteins and other biomolecules.
4. Chromatography has a wide range of applications, from analyzing food and drugs to identifying unknown compounds in forensic science.
5. Chromatography is a powerful analytical tool that can be used to separate, identify, and quantify the components of a mixture.