3M Empore

3M is a diversified technology company serving customers and communities with innovative products. The fundamental basis of the 3M Empore Disk technology is the ability to create a particle-loaded membrane, or disk, using any sorbent particle. The particles are tightly held together within an inert matrix of polytetrafluoroethylene (90% sorbent: 10% PTFE, by weight). The PTFE fibrils do not interfere with the activity of the particles in any way. The Empore membrane fabrication process results in a denser, more uniform extraction medium than can be achieved in a traditional Solid Phase Extraction (SPE) column or cartridge prepared with the same size particles.