Prepared to meet the demands of technical research tasks in the field of ion exchangers for solid phase extraction (SPE), these Spe Polypropylene Columns Roti ® X Bond Max offer a unique combination of reversed phase and strong anion exchange retention mechanisms. With a specific surface area of 300 m²/g according to BET, they provide excellent retention for acidic compounds, making them ideal for the enrichment of acidic analytes (pKa 2-8). These open tubular syringe-shaped columns with Luer tip outlets come filled with 30 mg of fully porous particles (FPP) and have a pore size of 300 Å. They are made of PP columns with PE filter elements and are stable across a wide pH range of 1.0-14.0. Whether you're working with acidic active ingredients from strongly matrix-

• Category: Ion exchangers for the SPE
• Particle type: Fully porous particles (FPP)
• pK: ~18
• Material text: Material: PP columns with PE filter elements.
• Similar phases: Strata™ XA Oasis ® MAX Supel™-Select SAX Bond Elut™ Plexa PAX CHROMABOND ® HR-XA Copure ® MAX HyperSep™ Retain AX Styre Screen ® QAX
• Particle size: 40 µm
• Pore size: 300 Å
• Packaging: 10 x 5 units
• Recommended application(s): acidic active ingredients from strongly matrix-contaminated samples like e.g. urine, plasma, serum phenolic acids acidic herbicides
• Column type: SPE column
• Filling quantity: 30 mg
• Specific surface according to BET: 300 m²/g
• Surface chemistry: Hydrophobic spherical polystyrene-divinylbenzene copolymer (PS/DVB) with quaternary ammonium modification, very strong mixed mode anion exchanger (MAX)
• Phase: MAX
• Column volume: 3 ml
• Column shape: Open tubular syringe-shaped column with Luer tip outlet
• Recommended storage temperature: RT
• Separation principle: Mixed mode (RP and Ion exchange (IEX))
• pH stability: 1,0-14,0