Recommended for applications requiring controlled solvent behavior, such as basic active ingredient isolation from strongly matrix-contaminated samples like urine, plasma, or serum, Spe Cartridges Chromafix® Hr-Xcw offers a reliable solution. These small tubular syringe-shaped cartridges feature hydrophobic spherical polystyrene-divinylbenzene copolymer (PS/DVB) with carboxylic acid modification, making them a weak mixed mode cation exchanger (WCX). With a specific surface area of 850 m²/g, they provide excellent separation capabilities while maintaining high exchanger capacities (> 0.7 meq/g). Their pH stability ranges from 1.0 to 14.0, ensuring versatile applicability. Store these Spe Cartridges Chromafix® Hr-Xcw at

• Category: Ion exchangers for the SPE
• Separation principle: Mixed mode (RP and Ion exchange (IEX))
• Version: Small
• Specific surface according to BET: 850 m²/g
• Packaging: 10 x 5 units
• Surface chemistry: Hydrophobic spherical polystyrene-divinylbenzene copolymer (PS/DVB) with carboxylic acid modification, weak mixed mode cation exchanger (WCX)
• Column shape: Tubular syringe-shaped cartridge with Luer tip inlet and outlet
• Column type: SPE cartridge
• pH stability: 1.0-14.0
• Recommended application(s): Basic active ingredients from strongly matrix-contaminated samples samples (urine, plasma, serum), Basic compounds, Quaternary amines, Strong bases with pKa > 10
• Minimum filling quantity: 60 mg
• Pressure stability: 10 bar
• Particle type: Fully porous particles (FPP)
• Endcapped: no
• Particle size: 85 µm
• Pore size: 55-60 Å
• Column volume: 0.4 ml
• Exchanger capacity cation/anion: > 0,7 meq/g
• Phase: HR-XCW
• Material text: Material: PP columns with PE filter elements.
• Recommended storage temperature: RT