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gas chromatography

   Also found in: Medical, Financial, Acronyms, Encyclopedia, Wikipedia, Hutchinson 0.03 sec.
gas chromatography
n.
Chromatography in which the substance to be separated into its components is diffused along with a carrier gas through a liquid or solid adsorbent for differential adsorption.
gas-chro·mato·graphic (gskr-mt-grfk) adj.
gas chromatography
n
(Chemistry) 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 Also called gas-liquid chromatography


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Despite the power of modern analytical instruments techniques of analysis, such as gas chromatography and mass spectrometry, one of the most important challenges is said to remain that of sample preparation, especially for non-volatile, insoluble materials and chemicals.
Infrared thermometer by Rubber World
An aliquot of transformer oil from the drum of the Exxon Univolt 60 transformer oil was examined for traces of PCBs as would be evident by capillary gas chromatography with electron capture detection (GC-ECD).
Preparation of reference material 8504, transformer oil by Wise, Stephen A. / Journal of Research of the National Institute of Standards and Technology
This study describes methods for analysis of acetone soluble wood extractives using a combination of high-resolution and low-resolution gas chromatography (GC).
Gas chromatographic analysis of acetone extractives in lodgepole pine ... by Campbell, Roger / Solutions - for People, Processes and Paper
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