Gas Chromatography (also known as Gas Liquid Chromatography) 1
Gas Chromatography (also known as Gas Liquid Chromatography) 1 : The separation of organic liquids or gases into discrete components or compounds seen as peaks on a chromatogram. Separation us done in a column which is enclosed in an oven held at a specific temperature, or programmed to change temperature at a reproducible rate. The column separates the compounds according to their affinity for the material inside the column (stationary phase). Columns can be either packed or capillary. Packed columns employ a powdery substance which may be coated with a nonvolatile liquid phase. A capillary column is a glass or quartz tube coated with a nonvolatile liquid. Gas Chromatography (GC) is the accepted method for identification of hydrocarbon mixtures normally used as accelerants, and must be performed in order to have a valid identification of petroleum distillates
No records Found