Gas chromatography is an instrumental method for the separation and identification of chemical compound
Gas chromatography is most widely used analytical technique in the world
2. Content
Introduction
Principal of gas chromatography
Classification of Detectors
Instrumentation
Factors affecting resolution
Application
3. Introduction
Gas chromatography is an instrumental method
for the separation and identification of
chemical compound
Gas chromatography is most widely used
analytical technique in the world
4. Principal of Gas Chromatography
The sample solution injected into the instrument enters a
gas stream which transports the sample into a separation
tube known as the "column."
5. Classification of Detectors
Thermal Conductivity Detector.
Flame Ionization Detector (FID).
Thermo Iconic Detector.
Flame Photometric Detector.
Ultraviolet Detectors.
Fluorescence Detector.
Refractive index detector (RI or RID).
Radio Flow Detector.
6. Flame photometric Detector
Similar to thermo iconic detectors, flame
photometric detectors (FPDs) are used for
select applications. These devices detect
components with phosphorous or sulfuric
atoms.
7. Thermo ionic Detector
Thermo ionic detectors, or TIDs, are not as
widely used as FIDs and TCDs. These detectors
are used to gauge and measure the presence of
compounds featuring phosphorous or nitrogen
atoms.
9. Instrumentation of gas chromatography
A good gas chromatography machine
contains the following important
components,
Pressure regulator
Sample injection port
Gas chromatography column
Stationary phase
Detector
Signal recorder