HyperSep™ Retain™ PEP polymeric SPE material is a high purity, highly porous polystyrene DVB (divinyl benzene) material modified with urea functional groups to give balanced retention of polar and non polar analytes. HyperSep™ Retain™ PEP is ideal for a wide range of applications, such as drugs and metabolites in biological fluids, peptides in serum, plasma or biological fluids and environmental fluids.

• High and consistent recoveries
• Fast and easy sample preparation and method development
• pH stable zero to 14

HyperSep™ Retain™ PEP offers reproducible and reliable sample preparation through excellent  batch-to-batch reproducibility. Many of the problems associated with traditional silica-based materials, such as inconsistent recoveries due to sorbent drying, are eliminated when using HyperSep™ Retain™ PEP. This can lead to fast sample preparation and method development.