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Altmann Syringe Filters

Syringe filters are ideal for filtering the sample solution before injection. These are usually membrane filters made of appropriate materials. They are also available as glass fibre filters or as membrane filters with glass fibre pre-filters in cases where a glass fibre filter is required in front of the membrane filter. When selecting syringe filters, the highest quality materials should be used as the sensitivity of the analytical method increases. These are specially tested for interfering substances. In addition, they guarantee a high batch consistency for steady, reliable analytical results.

Filter Material Properties
Cellulose acetate (CA)
  • hydrophilic membrane
  • excellent dimensional stability in aqueous solutions
  • extremely low binding capacity for proteins of 21 μg/filter at a membrane diameter of 25 mm
  • especially suitable for filtration of tissue cultures and biological macromolecules
Glass fiber (GF)
  • inert filter
  • for solutions with high suspended solids content or high viscosity
  • as pre-filters for other filters they prevent clogging of the membrane
Nylon (PA)
  • hydrophilic membrane
  • suitable for organic/ aqueous, medium polar liquids
  • resistant to many organic solvents
  • not resistant to acids and bases
  • high retention value for proteins
Polyethersulfone (PES)
  • hydrophilic membrane
  • very low adsorption of pharmaceuticals and proteins
  • very stable to bases, alcohols and acids (except oxidizing acids)
  • well suited for aqueous and slightly organic solutions with higher flow rates
  • binding capacity for proteins: 29 μg/ filter at a membrane diameter of 25mm
  • mechanically very stable
Polyester (PET)
  • hydrophilic Allround Membrane
  • suitable for polar as well as non-polar solvents
  • not cytotoxic
PTFE (PTFE)
  • hydrophobic membrane
  • for nonpolar liquids and gases
  • very resistant to acids, bases and solvents of all kinds
  • by rinsing with alcohol and water the hydrophobic membrane can be made water-wettable
  • when using a wetting agent, PTFE can be used with aqueous solutions
Polyvinlyde difluoride (PVDF)
  • hydrophilic membrane
  • for polar as well as non-polar solutions
  • binding capacity for proteins: 82 μg/ filter with a membrane diameter of 25 mm
  • ideal for use in HPLC
  • unsuitable for aqueous solutions
Regenerated cellulose (RC)
  • hydrophilic membrane with very low adsorbtion
  • for aqueous/ organic liquids (polar - medium polar)
  • binding capacity for proteins: 84μg/ filter
  • with a membrane diameter of 25 mm
  • ideal for biological samples
  • high chemical resistance
  • high flow rates
Glass fibre / regenerated cellulose (GF/RC)
  • syringe filters with prefilters are recommended for solutions with high particle loads or for highly viscous solutions
  • these filters combine a coarse glass fibre prefilter and a narrow-pored regenerated cellulose membrane as the main filter
  • the hydrophilic RC membrane is used for filtration of aqueous and organic-aqueous liquids, i.e. polar and medium polar sample solutions

 



Item Name Product Image Price

Altmann 25mm HPLC Syringe Filter ProFill, PTFE, 0.45 µm, natur, 100 pc/PAK - AAF36271458

AAF36271458 - 25mm HPLC Syringe Filter ProFill, PTFE, 0.45 µm, natur, 100 pc/PAK
Altmann 25mm HPLC Syringe Filter ProFill, PTFE, 0.45 µm, natur, 100 pc/PAK - AAF36271458 £127.34Buy Now

Altmann 25mm HPLC Syringe Filter, Nylon, 0.22 µm, 250 pc/PAK - AAF36274081

AAF36274081 - 25mm HPLC Syringe Filter, Nylon, 0.22 µm, 250 pc/PAK
Altmann 25mm HPLC Syringe Filter, Nylon, 0.22 µm, 250 pc/PAK - AAF36274081 £150.50Buy Now

Altmann 25mm HPLC Syringe Filter, Nylon, 0.45 µm, 250 pc/PAK - AAF36274082

AAF36274082 - 25mm HPLC Syringe Filter, Nylon, 0.45 µm, 250 pc/PAK
Altmann 25mm HPLC Syringe Filter, Nylon, 0.45 µm, 250 pc/PAK - AAF36274082 £150.50Buy Now

Altmann 25mm HPLC Syringe Filter, PTFE (Hydrophobic), 0.45 µm, 250 pc/PAK - AAF36274086

AAF36274086 - 25mm HPLC Syringe Filter, PTFE (Hydrophobic), 0.45 µm, 250 pc/PAK
Altmann 25mm HPLC Syringe Filter, PTFE (Hydrophobic), 0.45 µm, 250 pc/PAK - AAF36274086 £179.43Buy Now

Altmann 25mm HPLC Syringe Filter, PTFE, 0.45 µm, 250 pc/PAK - AAF36274772

AAF36274772 - 25mm HPLC Syringe Filter, PTFE, 0.45 µm, 250 pc/PAK
Altmann 25mm HPLC Syringe Filter, PTFE, 0.45 µm, 250 pc/PAK - AAF36274772 £272.04Buy Now

Altmann 30 mm Nylon Syringe Filter 0.2 um (100pk) - AA186055

AA186055 - 30 mm Nylon Syringe Filter 0.2 um (100pk)
Altmann 30 mm Nylon Syringe Filter 0.2 um (100pk) - AA186055 £358.93Buy Now

Altmann 30 mm Nylon Syringe Filter 0.45 um (100pk) - AA186054

AA186054 - 30 mm Nylon Syringe Filter 0.45 um (100pk)
Altmann 30 mm Nylon Syringe Filter 0.45 um (100pk) - AA186054 £358.93Buy Now

Altmann 30 mm PTFE Syringe Filter 0.2 um (100pk) - AA186057

AA186057 - 30 mm PTFE Syringe Filter 0.2 um (100pk)
Altmann 30 mm PTFE Syringe Filter 0.2 um (100pk) - AA186057 £358.93Buy Now

Altmann 30 mm PTFE Syringe Filter 0.45 um (100pk) - AA186058

AA186058 - 30 mm PTFE Syringe Filter 0.45 um (100pk)
Altmann 30 mm PTFE Syringe Filter 0.45 um (100pk) - AA186058 £358.93Buy Now

Altmann 30mm HPLC Syringe Filter ProFill, GMF, 1.2 µm, orange, 100 pc/PAK - AAF41273205

AAF41273205 - 30mm HPLC Syringe Filter ProFill, GMF, 1.2 µm, orange, 100 pc/PAK
Altmann 30mm HPLC Syringe Filter ProFill, GMF, 1.2 µm, orange, 100 pc/PAK - AAF41273205 £150.50Buy Now

Altmann 30mm HPLC Syringe Filter ProFill, PVDF, 0.2 µm, schwarz, 100 pc/PAK - AAF41273203

AAF41273203 - 30mm HPLC Syringe Filter ProFill, PVDF, 0.2 µm, schwarz, 100 pc/PAK
Altmann 30mm HPLC Syringe Filter ProFill, PVDF, 0.2 µm, schwarz, 100 pc/PAK - AAF41273203 £268.57Buy Now

Altmann 30mm HPLC Syringe Filter ProFill, RC, 0.2 µm, grau,100 pc/PAK - AAF41273199

AAF41273199 - 30mm HPLC Syringe Filter ProFill, RC, 0.2 µm, grau,100 pc/PAK
Altmann 30mm HPLC Syringe Filter ProFill, RC, 0.2 µm, grau,100 pc/PAK - AAF41273199 £405.17Buy Now

Altmann 30mm HPLC Syringe Filter ProFill, RC, 0.45 µm, braun,100 pc/PAK - AAF41273200

AAF41273200 - 30mm HPLC Syringe Filter ProFill, RC, 0.45 µm, braun,100 pc/PAK
Altmann 30mm HPLC Syringe Filter ProFill, RC, 0.45 µm, braun,100 pc/PAK - AAF41273200 £405.17Buy Now

Altmann 30mm HPLC syringe filter, 0,2µm, 100/pac - AAF41273201

AAF41273201 - 30mm HPLC syringe filter, 0,2µm, 100/pac
Altmann 30mm HPLC syringe filter, 0,2µm, 100/pac - AAF41273201 £147.74Buy Now

Altmann 30mm HPLC syringe filter, 0,45µm, 100/pac - AAF41273198

AAF41273198 - 30mm HPLC syringe filter, 0,45µm, 100/pac
Altmann 30mm HPLC syringe filter, 0,45µm, 100/pac - AAF41273198 £147.74Buy Now

Altmann 30mm HPLC syringe filter, 0,45µm, 100/pac - AAF41273202

AAF41273202 - 30mm HPLC syringe filter, 0,45µm, 100/pac
Altmann 30mm HPLC syringe filter, 0,45µm, 100/pac - AAF41273202 £147.74Buy Now

Altmann 30mm HPLC syringe filter, 0,45µm, 100/pac - AAF41273204

AAF41273204 - 30mm HPLC syringe filter, 0,45µm, 100/pac
Altmann 30mm HPLC syringe filter, 0,45µm, 100/pac - AAF41273204 £269.01Buy Now

Altmann 30mm HPLC syringefilter, 0,2µm, 100/pac - AAF41273197

AAF41273197 - 30mm HPLC syringefilter, 0,2µm, 100/pac
Altmann 30mm HPLC syringefilter, 0,2µm, 100/pac - AAF41273197 £147.74Buy Now

Altmann ProFill, 25mm HPLC Spritzenfil., gelb, RC, 0,45µm, 100/pac - AAV36271460

AAV36271460 - ProFill, 25mm HPLC Spritzenfil., gelb, RC, 0,45µm
Altmann ProFill, 25mm HPLC Spritzenfil., gelb, RC, 0,45µm, 100/pac - AAV36271460 £125.69Buy Now

Altmann ProFill,25mm HPLC syringe filter,RC, 0,2µm,100/pac - AAV36271459

AAV36271459 - ProFill,25mm HPLC syringe filter,RC, 0,2µm,100/pac
Altmann ProFill,25mm HPLC syringe filter,RC, 0,2µm,100/pac - AAV36271459 £125.69Buy Now