ENVIRO-CLEAN® solid-phase extraction (SPE) cartridges are designed specifically for the isolation and purification of environmental analytes such as pesticides, herbicides, polyaromatic hydrocarbons, polychlorinated biphenyls and other environmentally related compounds. By utilizing ultra-clean extraction sorbents along with chemically resistant PTFE frits, an end-user not only has the ability to purify complex matrices, but also reduce ion suppression or enhancement, and most importantly enrich compunds present at trace concentration levels