gas chromatography

American  

[gas kroh-muh-tog-ruh-fee] / ˈgæs ˌkroʊ məˈtɒg rə fi /

noun

Chemistry.

1. chromatography in which a substance is converted into vapor and mixed with a gaseous element, as nitrogen, then separated and quantified by preferential adsorption by a solid or liquid element.

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gas chromatography British  

noun

1. Also called: gas-liquid chromatography.  a technique for analysing a mixture of volatile substances in which the mixture is carried by an inert gas through a column packed with a selective adsorbent and a detector records on a moving strip the conductivity of the gas leaving the tube. Peaks on the resulting graph indicate the presence of a particular component

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Etymology

Origin of gas chromatography

First recorded in 1950–55

Example Sentences

Gas chromatography‒mass spectrometry testing revealed detection limits ranging from 0.006 to 0.035 µg/kg and quantification limits between 0.019 and 0.133 µg/kg.

From Science Daily

The researchers used a technique called gas chromatography to separate the different smells inside the sarcophagus that combined to make its scent.

From BBC

"In comparison to modern food-testing methods, like high-performance liquid chromatography, gas chromatography, mass spectrometry, atomic and molecular spectroscopy, and nuclear magnetic resonance spectroscopy, biosensors like our sensor offer superior advantages in time, portability, high sensitivity, and selectivity," said author Ngo Thi Hong Le.

From Science Daily

In these samples, using the gas chromatography technique, coupled with high-resolution mass spectrometry, 78 metabolites were identified and their changes were studied, mostly related to energy production and oxidative stress.

From Science Daily

After letting the chemicals interact in the chamber for up to 2 days, the team took samples and injected them into a gas chromatography mass spectrometer.

From Science Magazine