Science, Tech, Math › Science Chromatography Definition and Examples What Is Chromatography? Definition, Types, and Uses Share Flipboard Email Print These chalk chromatogaphy examples were made using chalk with ink and food coloring. Anne Helmenstine Science Chemistry Chemical Laws Basics Molecules Periodic Table Projects & Experiments Scientific Method Biochemistry Physical Chemistry Medical Chemistry Chemistry In Everyday Life Famous Chemists Activities for Kids Abbreviations & Acronyms Biology Physics Geology Astronomy Weather & Climate By Anne Marie Helmenstine, Ph.D. Chemistry Expert Ph.D., Biomedical Sciences, University of Tennessee at Knoxville B.A., Physics and Mathematics, Hastings College Dr. Helmenstine holds a Ph.D. in biomedical sciences and is a science writer, educator, and consultant. She has taught science courses at the high school, college, and graduate levels. our editorial process Facebook Facebook Twitter Twitter Anne Marie Helmenstine, Ph.D. Updated September 05, 2019 Chromatography is a group of laboratory techniques used to separate the components of a mixture by passing the mixture through a stationary phase. Typically, the sample is suspended in the liquid or gas phase and is separated or identified based on how it flows through or around a liquid or solid phase. Types of Chromatography The two broad categories of chromatography are liquid chromatography (LC) and gas chromatography (GC). High-performance liquid chromatography (HPLC), size exclusion chromatography, and supercritical fluid chromatography are some types of liquid chromatography. Examples of other types of chromatography include ion-exchange, resin, and paper chromatography. Uses of Chromatography Chromatography is used primarily to separate components of a mixture so that they can be identified or collected. It can be a useful diagnostic technique or part of a purification scheme.