CHROMABOND® HR-XA – SPE Cartridges

Strong Quaternary Ammonium Modified Polymeric Anion Exchanger for SPE

Properties:

  • Base material spherical PS/DVB copolymer, pore size 55-65 Å, particle sizes 45 µm or 85 µm (standard)
  • Very large specific surface 850 m2/g, pore volume 1.4 cm3/g, pH stability 1-14
  • Quaternary ammonium modification, exchange capacity 0.25 meq/g, pKa ~ 18
  • RP capacity 350 mg/g (caffeine in water)
  • High-purity material, highest reproducibility and lowest blank values due to an optimized production process
  • Outstanding recovery rates especially for the enrichment of acidic analytes

Recommended Applications:

  • Acidic active ingredients from strongly matrix-contaminated samples like, e.g., urine, plasma, serum
  • Phenolic acids
  • Acidic herbicides
  • Acids with pKa 2-8
Hr-XA-web