gas chromatography by naaimat muhammed. gas- liquid chromatography is based upon the partition of...
Post on 15-Jan-2016
260 views
TRANSCRIPT
Gas Chromatography
By
Naaimat Muhammed
Gas- liquid chromatography is based upon the partition of the analyte between a gaseous mobile phase and a liquid phase immobilized on the surface of an inert solid.
The concept of gas-liquid was first enunciated in 1941 by Martin and Synge, who were also responsible for the development of liquid-liquid partition chromatography .
In gas chromatography, the sample is vaporized and injected onto the head of a chromatographic column
Elution is brought about by the flow of an inert gaseous mobile phase.
Gas-liquid chromatography finds widespread use in all fields of science, where its name despite the fact that this usage neglects gas solid chromatography as a legitimate kind of
chromatography
Reference:
http://ull.chemistry.uakron.edu/analytical/GC/ Principles of Instrumental Analysis, Sloog,
Holler, Nieman, Saunders College Pub 5th Edition (1998)