International Journal of Scientific Research and Engineering Development

Gas chromatography (GC) is a common chromatographic technique used in analytical chemistry for separating and analyzing compounds that can be vaporized without decomposition. Classic applications of GC include testing the purity of a substance and separating the different components of a mixture. Hyphenated techniques combine chromatographic and spectral methods to utilize the advantages of both. Chromatography isolates pure or nearly pure components in a mixture, while spectroscopy provides selective information for identification using standards or library spectra. In this article, a detailed study of gas chromatography and the coupling of GC to different detectors, such as GC-MS and GC-AED, for solving complex analytical problems is discussed.