Adapted for use across diverse chemical handling environments, Spe Polypropylene Columns Roti ® X Bond Max offer exceptional versatility in the ion exchanger category for Solid Phase Extraction (SPE). These columns feature a strong anion exchanger (mixed mode) design, ideal for enriching acidic analytes with pK values ranging between 2 and 8. Made from hydrophobic spherical polystyrene-divinylbenzene copolymer with quaternary ammonium modification, they exhibit both reversed phase and strong anion exchange retention mechanisms, making them particularly effective at retaining acidic compounds. With a specific surface area of 300 m²/g as per BET, these open tubular syringe-shaped columns provide efficient separation principles through their mixed mode (RP and Ion exchange (IEX)) mechanism. Recommended applications include the

• Category: Ion exchangers for the SPE
• Material text: Material: PP columns with PE filter elements.
• pK: ~18
• Surface chemistry: Hydrophobic spherical polystyrene-divinylbenzene copolymer (PS/DVB) with quaternary ammonium modification, very strong mixed mode anion exchanger (MAX)
• Column type: SPE column
• Phase: MAX
• Pore size: 300 Å
• Specific surface according to BET: 300 m²/g
• pH stability: 1,0-14,0
• Particle type: Fully porous particles (FPP)
• Separation principle: Mixed mode (RP and Ion exchange (IEX))
• Packaging: 6 x 5 units
• Recommended storage temperature: RT
• Particle size: 40 µm
• Similar phases: Strata™ XA Oasis ® MAX Supel™-Select SAX Bond Elut™ Plexa PAX CHROMABOND ® HR-XA Copure ® MAX HyperSep™ Retain AX Styre Screen ® QAX
• Recommended application(s): acidic active ingredients from strongly matrix-contaminated samples like e.g. urine, plasma, serum phenolic acids acidic herbicides
• Column shape: Open tubular syringe-shaped column with Luer tip outlet
• Filling quantity: 500 mg
• Column volume: 6 ml