SPE columns, CHROMABOND HR-XA, 85 µm, 3 mL/200 mg

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SKU: 730951

SPE columns, CHROMABOND HR-XA, 85 µm, 3 mL/200 mg

State-of-the-art spherical polymer for highest demands in solid phase extraction. PS/DVB copolymer with quaternary ammonium modification for mixed-mode SPE with strong anion exchange and reversed-phase properties (MAX). Exchange capacity 0.25 meq/g, pKa ~ 18 and RP capacity 350 mg/g (caffeine in water). High-purity material with ideal flow properties and highest reproducibility. Allows highest reproducibility with extremely low blind values due to an optimized production process. Outstanding recovery rates especially for the enrichment of acidic (acids with pKa 2–8) analytes.
  • Particle type

    Fully porous particles (FPP)

    Particle shape

    Spherical

    Endcapped

    No

    Brand

    CHROMABOND

    Filter element material

    Polyethylene (PE)

    Carbon content

    Not available or proprietary

    pH stability

    1.0–14.0

    Column shape

    Open tubular syringe-shaped column with Luer tip outlet

    Column volume

    3 mL

    Hardware

    Polypropylene (PP) columns with polyethylene (PE) filter elements

    Column type

    SPE column

    Selling unit

    30 columns

    Scope of delivery

    30x (6x5 in aluminum bags each) SPE columns, certificate of analysis

    Filling quantity

    200 mg

    Particle size

    85 µm

    Base material

    PS/DVB copolymer

    Method

    Solid phase extraction (SPE)

    Mode

    Mixed mode (RP and Ion exchange (IEX))

    Recommended application(s)

    Phenolic acids

    Recommended application(s)

    Acids with pKa 2–8

    Phase

    HR-XA

    Pore size

    55–65 Å

    Specific surface according to BET

    850 m²/g

    Surface chemistry

    Hydrophobic spherical polystyrene-divinylbenzene copolymer (PS/DVB) with quaternary ammonium modification, very strong mixed mode anion exchanger (MAX)

    Column volume/adsorbent weight

    3 mL/200 mg

    Recommended application(s)

    Acidic active ingredients from strongly matrix-contaminated samples

    Recommended application(s)

    Acidic herbicides

  • Macherey Nagel - Chromatography Catalogue