Unlike other vacuum manifolds, the Visiprep system contains a patented valve system that allows for precise flow control through each SPE tube via rotating, independent, screw-type valves situated in each port within the manifold cover.
Designed for sealing unused portions of a 96-well filter/SPE plate during vacuum processing. Each sheet is comprised of a polypropylene fil coated with a synthetic rubber adhesive and is coupled with a liner tab for easy handling and dispensing
Supelclean ENVI-18 SPE tube is used for reversed phase separations involving a polar (usually aqueous) or moderately polar sample matrix (mobile phase) and a nonpolar stationary phase.