Micropur Syringe Filters, Altmann Analytik

These syringe filters are ideal for filtering the sample solution before the injection. Different materials have their own specific properties. For this reason, the selection of the appropriate filter depends primarily on the filtration solutions used.

Regenerated cellulose (RC):

  • Hydrophilic membrane with very low adsorption
  • For aqueous and organic/aqueous liquids (polar and medium polar sample solutions)
  • Binding capacity for proteins 84 μg/filter (with 25 mm filter)
  • Perfect for biological samples
  • High chemical resistance
  • High flow rates

Cellulose acetate (CA):

  • Hydrophilic membrane
  • Very high shape stability in aqueous solutions
  • Extremely low binding capacity for proteins 21 μg/filter (with 25mm filter)
  • Especially suited for filtration of tissue cultures and biological macromolecules

Polyamide (PA):

  • Hydrophilic membrane
  • For aqueous and organic/aqueous medium polar liquids
  • Resistant to many organic solvents
  • Not resistant to acids and base
  • High retention of proteins

Polytetrafluorethylene (PTFE):

  • Hydrophobic membrane
  • For non-polar liquids and gases
  • Very resistant to all kinds of solvents, acids and bases
  • Flushing with alcohol and water makes the originally hydrophobic membrane water-wettable
  • Suitable for degasing of HPLC solvents
  • Unsuitable for aqueous solutions

Ø
mm

Pore size
µm
PU
pc/Pack
Material
RCCAPAPTFE
Order No.Order No.Order No.Order No.
250.210010 32 1601110 32 1602110 32 1603110 32 16041
250.4510010 32 1601210 32 1602210 32 1603210 32 16042
150.210010 32 1601310 32 1602310 32 1603310 32 16043
150.4510010 32 1601410 32 1602410 32 1603410 32 16044


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