What is the difference between SPME and SPE?
SPME – Solid Phase MicroExtraction is an innovative, solvent free technology that is fast, economical, and versatile. SPME is a fibre coated with a liquid (polymer), a solid (sorbent), or a combination of both. The fibre coating removes the compounds from your sample by absorption in the case of liquid coatings or adsorbtion in the case of solid coatings. The SPME fibre is then inserted directly into the Gas Chromatograph for desorption and analysis. SPME has gained wide spread acceptance as the technique of preference for many applications including flavours and fragrances, forensics and toxicology, environmental and biological matrices, and product testing to name a few. SPE – Solid Phase Extraction is a technique designed for rapid, selective sample preparation and purification prior to chromatographic analysis. Using liquid chromatography principles to control selectivity, SPE provides the sample clean up, recovery, and concentration necessary for accurate quantitative analysis. Th
