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gas chromatograph
noun
: an instrument used to separate a sample into components in gas chromatography
Examples of gas chromatograph in a Sentence
Recent Examples on the Web
Much is revealed via volunteer online sleuthing and gas chromatograph chemical analysis, peppered by tales of evasion and financial loss.
—Tom Mullen, Forbes, 3 Nov. 2024
This set of instruments takes in a rock or soil sample and uses a mass spectrometer, a tunable laser spectrometer, and a gas chromatograph to characterize its molecular structure and isotopic composition, and also to test for the presence of organic carbon.
—IEEE Spectrum, 30 Dec. 2010
This gradual pathway resembles a gas chromatograph with a long tube designed to detect more chemicals at a slower rate.
—Matt Hrodey, Discover Magazine, 8 July 2023
In his reading, the Viking gas chromatograph scooped up soil, heated it, and in so doing activated the perchlorate, which then destroyed the very organics the spacecraft was searching for.
—Andrew Lawler, Discover Magazine, 22 Nov. 2010
But within days that finding was contradicted by results from the gas chromatograph spectrometer, which detected no sign of organic compounds, much less evidence of life.
—Andrew Lawler, Discover Magazine, 22 Nov. 2010
The device, fitted with a gas chromatograph, was with Dr. Lovelock on his Antarctic voyage, and his findings helped confirm links between chlorofluorocarbons and the hole in the ozone layer.
—Brian Murphy, Washington Post, 28 July 2022
Kerth and his colleagues have studied this process in the lab, searing steaks to precise specifications and feeding the results into a gas chromatograph, which measures the amount of each volatile chemical produced.
—Bob Holmes, Smithsonian Magazine, 25 June 2021
So the scientists ran the extract through a tool called a gas chromatograph to separate the chemicals.
—Theresa MacHemer, Smithsonian Magazine, 25 Mar. 2021
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Word History
First Known Use
1958, in the meaning defined above
Time Traveler
The first known use of gas chromatograph was
in 1958
Dictionary Entries Near gas chromatograph
Cite this Entry
“Gas chromatograph.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/gas%20chromatograph. Accessed 25 Nov. 2024.
Medical Definition
gas chromatograph
noun
: an instrument used to separate a sample into components in gas chromatography
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