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chromatography

UK[ˌkrəʊməˈtɒɡrəfi]US[ˌkroʊməˈtɑːɡrəfi]
n

A technique for separating the components of a mixture by passing it through a medium in which the components move at different rates.

Morpheme Breakdown

chromato
graphy
chromato

color

graphy

process of recording/writing

Etymology

The term chromatography literally means "color writing." It was coined in the early 20th century by the Russian-Italian botanist Mikhail Tsvet, who first used the technique to separate plant pigments like chlorophylls and carotenes, which produced distinct colored bands on the adsorbent column. The Greek root 'chrōma' (color) reflects this initial visual outcome of the separation process. Over time, the technique was vastly expanded to separate colorless compounds using various detection methods, but the original name, linking the concept of separation to the visual recording of colored results, has been retained in scientific terminology.

Analysis

Structure: chromato (color) + graphy (process of recording/writing) chromato: From Greek 'chrōma, chrōmatos' (color, skin). In this word, it functions as a combining form denoting color. graphy: From Greek '-graphia' (writing, recording, process of recording). In this word, it functions as a suffix meaning a process or technique of recording.

Examples

Gas chromatography is commonly used in forensic science to analyze unknown substances.

The researcher used paper chromatography to separate the different dyes in the ink sample.

Advances in high-performance liquid chromatography have greatly improved pharmaceutical analysis.

chromatography – Meaning, Etymology & Word Origin | OpenEtymology