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Model Metrosep A Supp 4 - 250/4.0 6.1006.430 -Column

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The Metrosep A Supp 4 - 250/4.0 is an extremely robust column with very good separation properties. The separation phase is comprised of polyvinyl alcohol particles with quaternary ammonium groups and a diameter of 9 µm. This structure guarantees great stability and a greater tolerance to very small particles that could pass through the integrated filter pad. The Metrosep A Supp 4 - 250/4.0 has a medium ion exchange capacity; sulfate elutes after 12.5 minutes. The plate numbers that can be achieved with this separation column is higher than those for the Metrosep Anion Dual 2 - 75/4.6. The A Supp 4 - 250/4.0 is particularly suitable for all routine tasks in water analysis.

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  • Carrier material: Polyvinyl alcohol with quarternary ammonium groups
  • Column capacity: 37 µmol (Cl–)
  • Column dimensions: 250 x 4.0 mm
  • Eluents:
    • Phthalate eluent (standard eluent)
      • Without chemical suppression
      • Phthalic acid: 5.0 mmol/L; 1660 mg/2 L
      • Acetone: 2.0%; 40 mL/2 L
      • TRIS: pH = 4.4
    • Carbonate eluent (standard eluent)
      • With chemical suppression
      • Sodium hydrogen carbonate: 1.7 mmol/L; 286 mg/2 L
      • Sodium carbonate: 1.8 mmol/L; 382 mg/2 L
    • Carbonate eluent, modified
      • Sodium hydrogen carbonate: 4.0 mmol/L; 672 mg/2 L
      • Sodium carbonate: 1.0 mmol/L; 212 mg/2 L
  • Housing material: PEEK
  • Max. pressure: 12 MPa
  • Maximum flow: 2.0 mL/min
  • Organic modifier: 0 - 100% (particularly acetone, acetonitrile, methanol)
  • Particle size: 9 µm
  • pH range: 3–12
  • Standard flow: 1.0 mL/min
  • Temperatur range: 20–60 °C