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Membrane filters
Membrane Filter, mixed cellulose ester
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Recommended for clarification and sterilisation of aqueous solutions, microbiological analysis and particle counts.
- Qualified for aqueous solutions (pH 4-8), hydrocarbons and some dilute solvents
- High non-specific adsorption: 160 µg/cm2 for gamma globulin and pore size 0.2 µm (decreases with increasing pore size)
- High mechanical stability, ideal for gravimetrical measurements
- Maximum temperature 180 °C
Membrane Filters, cellulose acetate, non sterile
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Recommended for aqueous samples, biological applications and protein filtration.
- Compatible to aqueous solutions with pH 4-8, most alcohols, hydrocarbons and oils
- Filtration of aqueous solutions for biological and clinical analysis
- Sterilisation of biological solutions (CA-membranes with a pore size of 0.2 µm are specially recommended when the recovery of proteins is critical)
- High thermal stability: 180 °C
- Very low nonspecific adsorption
Membrane Filter, hydrophobic, PTFE
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Made entirely of PTFE (polytetrafluorethylene), reinforced by Polypropylene net.
- Permanently hydrophobic
- Allowing passage of air even at low differential pressure
- Resistant to almost all chemicals, very strong acids, cryoliquids, alkalis, aggressive organic solvents
- Must be pre-wetted with an organic solvent, such as ethanol, methanol or isopropanol, before filtration of aqueous samples
- Max. Temperature 145 °C
Membrane Filters, Cellulose Nitrate, non-sterile
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Recommended for clarification and sterilisation of aqueous solutions, microbiological analysis and particle counts
- Qualified for aqueous solutions (pH 4-8), hydrocarbons and some dilute solvents
- High non-specific adsorption: 160 µg/cm² for gamma-Globulin
- Maximum temperature 130 °C
MF-Millipore™ membrane, mixed cellulose ester, 142 mm
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MF-Millipore™ Membranes have a biologically inert mixture of cellulose acetate and cellulose nitrate. The MF-Millipore™ filters without Triton® surfactant have a lower water extractable content compared to the standard MF-Millipore™ filters and contain a minimal amount of wetting agent.
Features & Benefits:...
MF-Millipore™ membrane, mixed cellulose ester, 90 mm
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MF-Millipore™ Membranes have a biologically inert mixture of cellulose acetate and cellulose nitrate. The MF-Millipore™ filters without Triton® surfactant have a lower water extractable content compared to the standard MF-Millipore™ filters and contain a minimal amount of wetting agent.
Features & Benefits:...
Membrane filter PES, hydrophil
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White. They are recommended for the filtration of aqueous solutions and proteins. Due to their low content of extractable substances, they are suitable for sample preparation in environmental analysis.
- High flow rates
- Low non-specific protein adsorption
- High resistance
Membrane filters type 111, cellulose acetate, sterile
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White, individually sterile packed. Resistant to steam sterilisation up to 134 °C, or in dry heat up to 180 °C. Very low adsorption (important when filtering proteinaceous solutions). Suitable for particle removal and ultracleaning of aqueous solutions, methanol, ethanol, high-grade alcohols and residue analysis of fuels and oils. The extractable content of these filters make up < 1 % of their weight. Other pore sizes and formats available on request....