SPE extraction method and selection

Solid-phase extraction is to use a solid adsorbent to adsorb the target compound in a liquid sample, separate it from the sample matrix and interfering compounds, and then use the eluent to elute or heat desorption to achieve the purpose of separating and enriching the target compound. As a sample preparation technique, solid phase extraction can be used for all types of samples, but liquid samples are the easiest to process. It has been used more and more widely in the laboratory.

How to choose SPE cartridge specifications

In general, the filling amount and size of the solid-phase column packing must be selected to be suitable for the matrix and target substance loading. In general, the total retention of the column type (including inclusions) should be controlled below a maximum of 5% of the solid phase loading. The appropriate size should be selected to ensure that it does not exceed the specified amount.