Solid phase extraction (SPE) is a kind of extraction process including liquid phase and solid phase. It is to separate the target compound from the sample matrix through the force between the bonding functional groups of the filler and the compounds to be separated, so as to achieve the purpose of removing impurities and enriching the target components.
The solid-phase extraction column packing is rich in types and specifications, which is used to provide the purification treatment of laboratory biological samples, especially the pretreatment of complex biological samples, so that the target can achieve satisfactory recovery and repeatability, effectively remove the interference components in the samples, and obtain the "pure" map in the later stage.