Membrane filters

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 microscope
• Low protein binding minimizes sample loss of proteinaceous samples
• Narrow pore size distribution and high pore density support rapid surface capture of analyte
• Negligible absorption and adsorption of filtrate; nonhygroscopic
• No particle shedding enables clean filtrate
• Biologically inert
• Filters are autoclavable for 30 min at 121 °C

Hydrophobic PTFE membrane for applications involving organic solvents and chemically aggressive solutions.

• Maximum operating pressure of 4.1 bar forward and 3.0 bar reverse
• 1 µm capsules incorporate a PP prefilter
• Autoclavable up to 132 °C maximum
• Connectors: stepped barb (SB) and female national pipe thread (FNPT)

Durapore® PVDF membranes offer high flow rates and throughput, low extraction, agents, and broad chemical compatibility.

Features & Benefits:

• Can be sterilized by ethylene oxide and gamma irridation
• Avialable in different pore size
• Very low protein binding to minimize interaction with your sample and maximize recovery

Polycap TC filtration capsules feature dual layer polyethersulfone (PES) membranes and provide efficient filtration for aqueous solutions.

• 100% integrity-tested during manufacturing
• Polypropylene housing thermally fused to eliminate surfactants and mold releasing agents that could affect analysis
• Manufactured according to ISO9001:2008 QMS standards
• Available in sterile versions with a filling bell option
• PES membranes protein adsorption characteristics: HAS 0.4 µg/cm²; Insulin 2.0 µg/cm²; gammaglobulin 1.5 µg/cm²
• Connectors: stepped barb (SB)

Fittings with integrated ferrule for SafetyCaps and SafetyWasteCaps.
Use the blind plugs to tighten connectors which are temporarily inactive or not in use....

Suitable for analytical and gravimetric analyses, as well as a pre-filter.

• Hydrophilic
• Air / Gas Filtration
• Liquid Filtration
• Non-sterile

Recommended for clarification and sterilisation of aqueous solutions, microbiological analysis and particle counts

• Membranes with grid lines are ideal for microbiological analysis (bacterial counts) of water, pharmaceuticals, beverages, cosmetics, etc. for the measurement of coliform bacteria and other germs
• Gridded 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 imprinting
• Sterilised membranes (packaged in individual blisters)

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

S-Pak filters are manufactured from mixed cellulose esters and have been specially optimized for MF methods. Microbiological analysis of water or other liquids....

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