Advantages of Styre Screen®: Styrene - divinylbenzene copolymeric support material. Functionalized with the same types of phases as our silica supports, including reverse phase, ion-exchange and copolymeric such as DAU and THC. The polymeric support material has high analyte capacity which allows for a reduction in sorbent mass. This translates to faster flow rates and less solvent usage. The support material is pH stable across the entire range from 1 to 14.