Explain the principle of gas chromatography. List the detectors used in gas chromatography and write its applications.
Gas chromatography (GC) is a widely used analytical technique in which a sample is vaporized and then separated into its individual components using a stationary phase and a mobile phase. The principle of GC is based on the differential distribution of compounds between a stationary phase and a mobile phase, which allows for the separation of complex mixtures into their individual components.
GC system include a sample injection port, a chromatographic column packed with a stationary phase, a carrier gas, a detector, and a data acquisition system. The sample is injected into the injection port, where it is vaporized and carried by the carrier gas through the chromatographic column. The column contains a stationary phase, which _______ _______ _________ ________ ___ _______ ___.
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