GC工作过程 GC工作过程 Gas Chromatography (Go] is based on the ability of a chromatography column, containing the stationary phase, to separate the components of the sample as it is carried through the column by a flow of inert carrier gas. Only volatile samples can be analysed, and elevated temperatures are used to ensure adequate vapour pressures of each sample component. GC can be used to determine the number of components in a sample, and the concentration and purity of each component. The block diagram below shows the main stages of a GC analysis. Prepare Inject onto eparate Detect dentify and Sample Column Components Sample Quantify Components一.GC工作过程