Membrane filters PORAFIL®MV, white
These cellulose mixed ester membranes are reinforced with a polyester fabric. Their filtration properties are very similar to membranes PORAFIL® CM, however, they are mechanically much more stable.
Membrane filters PORAFIL®CM
Membranes of cellulose mixed esters are ideal for gravimetric analysis. They are particularly suited for aqueous solutions. The hydrophilic membrane is thermally stable to 125 °C and can be autoclaved at 121 °C. This membrane is often used for contamination tests.
Membrane filters PORAFIL®CM, with grid
Membranes of cellulose mixed esters are ideal for gravimetric analysis. They are particularly suited for aqueous solutions. The hydrophilic membrane is thermally stable to 125 °C and can be autoclaved at 121 °C. This membrane is often used for contamination tests.
Membrane filters Nitrocellulose PORAFIL®NC
PORAFIL® NC membranes are made from cellulose nitrate. They are easily wettable and suited for filtration of aqueous solutions. In dry atmosphere these membranes are thermally stable to 125 °C and can be autoclaved at 121 °C.
Membrane filters Regenerated cellulosePORAFIL®RC
Membranes of regenerated cellulose are resistant towards most organic solvents. They are, for example, used for filtration of solvent mixtures and ultrapurification and degassing of HPLC eluents.
Membrane filters Polytetrafluoroethylene PORAFIL®TE
Membranes of polytetrafluoroethylene (PTFE) are particularly suited for aggressive media, since they are chemically inert towards aqueous and organic solutions as well as towards concentrated acids and bases. These membranes are hydrophobic, thus the pressure for filtration of aqueous solutions has to be higher than the breakthrough pressure. PORAFIL® TE membranes can be used at temperatures up to 145 °C
Membrane filters Polyester PORAFIL®PE
Polyester membranes are hydrophilic and particularly suited for fine filtration, dust analysis, aerosol analysis and ultra-purification of solvents.
Membrane filters Polycarbonate PORAFIL®RC
Polycarbonate membranes are mainly used for the determination of AOX.
Membrane filters Cellulose acetate PORAFIL®CA
These membranes of cellulose acetate have a low protein binding capacity and are suited for aqueous and alcoholic media. The membranes are hydrophilic and can be used for hot gases up to 180 °C. They can be sterilised.
Membrane Filters, cellulose acetate, non sterile
Recommended for aqueous samples, biological applications and protein filtration.Compatible to aqueous solutions with pH 4-8, most alcohols, hydrocarbons and oilsFiltration of aqueous solutions for biological and clinical analysisSterilisation 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 °CVery low nonspecific adsorption
Membrane Filters, Cellulose Nitrate, non-sterile
Recommended for clarification and sterilisation of aqueous solutions, microbiological analysis and particle countsQualified for aqueous solutions (pH 4-8), hydrocarbons and some dilute solventsHigh non-specific adsorption: 160 µg/cm² for gamma-GlobulinMaximum temperature 130 °CRecommended for clarification and sterilisation of aqueous solutions, microbiological analysis and particle countsQualified for aqueous solutions (pH 4-8), hydrocarbons and some dilute solventsHigh non-specific adsorption: 160 µg/cm² for gamma-GlobulinMaximum temperature 130 °C
Membrane filters, cellulose nitrate, sterile
Recommended for clarification and sterilisation of aqueous solutions, microbiological analysis and particle countsQualified for aqueous solutions (pH 4-8), hydrocarbons and some dilute solventsHigh non-specific adsorption: 160 µg/cm² for gamma-GlobulinMaximum temperature 130 °CRecommended for clarification and sterilisation of aqueous solutions, microbiological analysis and particle countsQualified for aqueous solutions (pH 4-8), hydrocarbons and some dilute solventsHigh non-specific adsorption: 160 µg/cm² for gamma-GlobulinMaximum temperature 130 °C
Membrane Filters, nylon
Recommended for filtration, sterilisation and clarifications of mobile phase in HPLC processes with aqueous, alkaline and organic samplesMade entirely of polyamide, hydrophilicHigh non-specific adsorption, high mechanical stabilityQualified for many solvents and alkaline solutions, pH range 3-14Maximum temperature 134 °C
Membrane Filter, hydrophobic, PTFE
Made entirely of PTFE (polytetrafluorethylene), reinforced by Polypropylene net.Permanently hydrophobicAllowing passage of air even at low differential pressureResistant to almost all chemicals, very strong acids, cryoliquids, alkalis, aggressive organic solventsMust be pre-wetted with an organic solvent, such as ethanol, methanol or isopropanol, before filtration of aqueous samplesMax. Temperature 145 °C
Membrane filters, mixed cellulose ester, with grid
Recommended for clarification and sterilisation of aqueous solutions, microbiological analysis and particle countsMembranes with grid lines are ideal for microbiological analysis (bacterial counts) of water, pharmaceuticals, beverages, cosmetics, etc. for the measurement of coliform bacteria and other germsGridded membranes (black grid on white membrane) for counts of colonies as a standard method of quantification, black grid, clearly defined sections (3.1 x 3.1 mm grid)Special ink, non-toxic and totally free from bacterial growth inhibitors, is used for imprintingSterilised membranes (packaged in individual blisters)
Membrane filters Durapore®, PVDF
White. For filtration of biological solutions.HydrophilVery low protein bindingAutoclavable
Membrane filters ReliaDisc™, cellulose nitrate
Filter membranes with grid lines for easy colony counting. For microbiological analysis of water, food and beverage application in the pH range 4-8.SterileMaximum thermal stability 130 °C
Nuclepore® membrane filter, PC
Hydrophilic, low protein bindingSmooth surface for easy identification of particlesHighly resistant to chemicals and good thermal stabilityAutoclavable up to 121 °CApplications: Ideal for environmental and water analysis.
Membrane filter 19 mm, Nuclepore™, Track-Etched, PC
Track-etched for highly defined pore size and high pore densityTreated with PVP to render it hydrophilicLow extractables, minimizing sample contamination riskHigh chemical resistance and good thermal stability for a wide range of sample typesLow, consistent ash and low tare weightsSmooth flat surface for high particle visibility
Membrane Filters, Cyclopore™, PC
Membrane filters Cyclopore™ polycarbonate are true pore size microporous membranes featuring the sharp cut-off and reproducible microfiltration characteristics of track-etched membrane filters.Low affinity for stains improves visibility under a microscopeLow protein binding minimizes sample loss of proteinaceous samplesNarrow pore size distribution and high pore density support rapid surface capture of analyteNegligible absorption and adsorption of filtrate; nonhygroscopicNo particle shedding enables clean filtrateBiologically inertFilters are autoclavable for 30 min at 121 °C
Membrane filters, mixed cellulose ester (MCE)
Sterile, individually wrapped membrane filters for the microbiological analysis of aqueous samples using the membrane filter technique.
Membrane filter dispenser Sentino™
The filter dispenser is ideal for microbiological test laboratories with a high throughput. The device is designed to hold 200 membrane filters. Individual membrane filters are dispensed aseptically at the touch of a button on the soft-touch keypad. Refill packs can be easily loaded and unloaded at any time. Guide plates help when loading refill packs to prevent jamming. The dispenser can be plugged into main power source or operated with the NiMH rechargeable battery for mobile use.Dimensions: 120 x 220 x 200 mmWeight: 0.9 kgScope of supply: Membrane filter dispenser, power transformer with EU/UK/US power cord, user guide
Membrane filter PES, hydrophil
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 ratesLow non-specific protein adsorptionHigh resistance
Membrane filters, cellulose acetate
Type 111. 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.Other patterns are available on request.
Membrane filters EZ-Pak, mixed cellulose ester
White. For general microbiological analysis.SterileIndividually-packedGriddedWith imprint of article numbers, batch numbers, pore sizes and sequential numbers4 x 150 membrane filters
Membrane filters type 113, cellulose nitrate
White. Very low content of extractable materials. Weight constant after 60 minutes of drying at 105 °C. Suitable for residue analysis, microscopic viewing in incident or transmitted light, chemotaxis, x-ray fluorescence, spectrometry and gravimetric analysis. Autoclavable at 121 °C. Other pore sizes and formats are available on request.Other patterns are available on request.
Membrane filters, type 114, cellulose nitrate
White membrane with black grid, for detection of bacteria with dyed media, particle count & microscopy, individually, sterile packaged / non sterile.
Membrane filter PES
Circular filter for ultrafiltration for sample concentration in stirring cells. The PES diaphragm offers a high flow rate.
Membrane Filters, Grade RC, Regenerated cellulose
spontaneously wetted, very good wet-strengthhigh chemical resistance, useful for aqueous and organic mediahydrophiliccan be used up to 180 °Csterilisable by all methodssuitable for use as sterile filter to ASTM-D 3862-80Application: For the sterilisation and particle filtration of aqueous and organic solutions
Membrane filters, inorganic, Anodisc®
Material: Anopore®. White.The inorganic membrane Anopore® consists of high-purity aluminium oxide and can be used for a wide range of applications. The unique material has a precise, non-deformable honeycomb structure with a narrow pore size distribution range that guarantees very efficient particle retention. In addition, the membrane has a low protein binding capacity, minimal autofluorescence, is non-toxic and supports cellular growth.
Membrane filters, Nylon
Hydrophilic, durable and compatible with a wide range of aqueous solutions, organic solvents and for the filtration of biological preparations and media. Autoclavable at 121 °C.
Membrane Filter, mixed cellulose ester
Recommended for clarification and sterilisation of aqueous solutions, microbiological analysis and particle counts.Qualified for aqueous solutions (pH 4-8), hydrocarbons and some dilute solventsHigh 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 measurementsMaximum temperature 180 °C
Membrane filters, Grade MCE, mixed cellulose esters
Sterile or non-sterile.-* Nitrocellulose membrane
Membrane filters type 113, cellulose nitrate
White. Very low content of extractable materials. Weight constant after 60 minutes of drying at 105 °C. Suitable for residue analysis, microscopic viewing in incident or transmitted light, chemotaxis, x-ray fluorescence, spectrometry and gravimetric analysis. Autoclavable at 121 °C. Other pore sizes and formats are available on request.