The Instructions Of C18 SPE Cartridge
HAWACH SPE cartridges are available in 1ml, 3ml, 6ml and12ml and the packing materials include four major types: silicone bonded matrix, polymer matrix, adsorption matrix and special column. The silicone bonded matrix includes reversed phase C18, C18-ne, C8; normal phase Silica, Diol, CN; ion exchange SAX, SCX, NH2, PRS, PSA; mixed mode C8/SCX, C8/SAX. The polymer matrix includes HLB, MCX (PS/DCB), MAX (PS/DCB), WCX (PS/DCB), and WAX (PS/DCB). The Adsorption matrix contains alumina (AI203), graphitized carbon black (GCB), and Florisil pesticide residue. As for the special column, it is for azo dye detection column, etc.
Usage of C18 SPE cartridge
Sample processing is the most common step in the analysis. C18 SPE cartridge is a sample-processing solid phase extraction device that is easy to use and recyclable. The C18 SPE cartridge reduces sample processing time and can be used as follows:
Purification: The packing in the SPE cartridge adsorbs the compound of interest or impurities in the sample. Thus, when the sample flows out, the selected compound (including impurities) is left on the extraction column.
Micro extraction or concentration: The analyte can be concentrated when the amount of analyte is below the method limit.
Separation: Gradient elution based on different polarities of the sample, extraction of samples, and increase of sample concentration.
Dissolution exchange: Dissolution exchange: If the sample is poorly soluble, the analyte can be adsorbed and eluted through the cartridge with a suitable solvent.