Gas chromatography (GC) is a separation technique that is widely used in the analysis of volatile and semi-volatile compounds. GC is based on the differential partitioning of analytes between a stationary phase and a mobile phase, which is typically a gas.

GC can be performed using different modes of separation, such as capillary, packed, or multidimensional GC. GC can also be coupled with different detectors, such as flame ionization, thermal conductivity, or mass spectrometry, to provide additional information about the separated components.

Recent innovations in Gas Chromatography include the development of multidimensional GC, which allows for the separation of complex mixtures with high resolution and sensitivity. Another innovation is the use of comprehensive two-dimensional GC (GCxGC), which combines two modes of separation to provide a highly detailed analysis of complex mixtures.

Overall, GC is a powerful analytical tool that is widely used in various fields, including environmental analysis, food analysis, and forensic analysis. The continuous development of new GC techniques and instrumentation has greatly improved our ability to analyze complex samples with high sensitivity and resolution.

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