Widely applied in chemical workflows, Spe Polypropylene Columns Roti ® X Bond Wcx are ion exchangers for the Solid Phase Extraction (SPE) category, specifically designed for the enrichment of strong basic analytes (pKa >10). These open tubular syringe-shaped columns with Luer tip outlets feature hydrophobic spherical polystyrene-divinylbenzene copolymer (PS/DVB) with carboxylic acid modification as their surface chemistry, offering a mixed mode separation principle that combines Reversed Phase (RP) and Ion Exchange (IEX) mechanisms. With a specific surface area of 600 m²/g according to BET, these columns provide an effective means for separating strong bases from strongly matrix-contaminated samples such as urine, plasma, or serum. They come filled with

• Category: Ion exchangers for the SPE
• Recommended storage temperature: RT
• Surface chemistry: Hydrophobic spherical polystyrene-divinylbenzene copolymer (PS/DVB) with carboxylic acid modification, weak mixed mode cation exchanger (WCX)
• Recommended application(s): Strong bases with pK a >10 Basic active ingredients from strongly matrix-contaminated samples like e.g. urine, plasma, serum
• Pore size: 300 Å
• Similar phases: Oasis ® WCX Strata™-X-CW CHROMABOND ® HR-XCW Copure ® WCX
• Filling quantity: 150 mg
• Column volume: 6 ml
• Material text: Material: PP columns with PE filter elements.
• pK: ~5
• Column type: SPE column
• Column shape: Open tubular syringe-shaped column with Luer tip outlet
• Particle size: 40 µm
• pH stability: 1,0-14,0
• Specific surface according to BET: 600 m²/g
• Phase: WCX
• Separation principle: Mixed mode (RP and Ion exchange (IEX))
• Particle type: Fully porous particles (FPP)
• Packaging: 6 x 5 units