EnvirElut sorbents are specially designed for the extraction of a wide range of compounds from aqueous matrices. EnvirElut is available in straight barrel 3 and 6 mL SPE cartridges, which can be used with the PPM-48 or conventional Vac Elut vacuum manifolds. Straight barrel 20 mL SPE cartridges can only be used with the Vac Elut vacuum manifold.