Filtration Membrane Discs
Thin, precut membrane rounds for high-throughput, fast filtration of liquid and gas samples. Gridded and non-gridded discs. Various materials including mixed cellulose ester, polycarbonate, PTFE, nylon, and PVDF. For air monitoring/analytical research.
Sizes
Filter membranes are made in a range of diameters, typically designed to fit a specific holder or manifold.
Materials
Filter membrane can be made from cellulose, mixed cellulose esters (MCE), polyvinylidene fluoride (PVDF), polyethersulfone (PES), polyvinyl chloride (PVC), polytetrafluoroethylene (PTFE), nylon, polycarbonate (PC), polyester, polyethylene terephthalate (PET), and polypropylene (PP). Other membrane materials include aluminum oxide, gelatin, porcelain, and glass.
Pore Size
The size of membrane pores determines which particles will be retained by the filter. A pore size of 0.2 µm is small enough to remove microbes from solutions; a 0.45 µm ore size can remove larger particulates.
Color and Grids
White membrane filters may be plain or marked with square grids (outlined in black) that can help with enumerating particles. Gridded or plain black membrane filters may be helpful when filtering light-colored particulates.
Sterility
Filter membranes may be pre-sterilized or may be sterilized using ethylene oxide, gamma irradiation, or autoclaves. The need for sterility is determined by the application, which are many and varied:
- Light microscopy samples
- Cytology sample preparation
- Electron microscopy samples
- Air quality and other environmental monitoring
- Water analysis and water quality testing
- Microbiology colony counting and quality control
- Chemotaxis
- Sterile preparation of buffers, tissue culture media, microbiological media, and other biological fluids
Alkali Scientific ProCycle™ Pre-cut Sealing Membranes, Non-Sterile, qPCR Optical (sticky adhesive film) Bio-Rad™ Type, 10 bags of 10 membranes
RNase, DNase, DNA, and PCR inhibitor free Evaporation rates ≤ 5% Inner packs of 10 membranes PureAmp™ Sealing Membranes are compatible with all standard PCR plates. Membrane options include pierceable aluminum, standard transparent, optically clear sticky adhesive, optically clear pressure-sensitive adhesive, and low-adhesive EZ-peel, all of which are guaranteed to keep evaporation rates below 5%.
Thomas Scientific Prefilters, 5uM GMF, 47mm, 50/Pk.
ValuSep 5um Glass Micro Fiber (GMF) prefilters are made of two separate layers of glass fiber in a very thin format for highly efficient capture and retention of particles that could prematurely clog an SPE filter.
Chemglass Life Sciences Fritted Disc, 25mm, Coarse
Fritted Disc, 25mm, Coarse. Porous discs for use in fabrication of special glass apparatus. Fritted glassware is designed for low pressure vacuum filtration or gas flow. The MAX differential pressure should not exceed 15 PSI. Fritted glassware should not be exposed to excessive temperature change or direct exposure to flame due to the fact that it has less resistance to thermal shock than standard borosilicate glassware.
Analytical Sales & Services MWCO Micro Spin Filters, 800µL Volume, Pes 10,000 with 2.0ml Receiver Tubes
MWCO Micro Spin Filters, 800µL Volume, PES 10,000, with 2.0mL Receiver Tubes (Non-Sterile)
Enterprise Technology Solutions Educational Insights Inc Light Filters, f/Fluorescent/LED,Tranquil Blue,4/PK,Multi
Fluorescent and LED lights are staples in many classrooms and offices, but their harsh glare and flickering light can cause eyestrain, headaches and anxiety. Cover your lights with this fabric panel and create a calm and soothing environment perfect for focusing and concentrating. Light Filter attaches easily over standard ceiling fixtures with six sturdy, sewn-in magnets.
Tisch Scientific MCE Membrane Filters
Tisch MCE membrane filters are developed from a mixture of cellulose acetate and cellulose nitrate and are one of the most widely used filters in both air monitoring and analytical applications.
Sigma Aldrich Fine Chemicals Biosciences Nylon Membranes positively
Microporous nylon 66 membrane on a polyester support carrying positively charged (pH 3 - 10) Aquaternary ammonium groups.Surface Properties Pore size of A0.45mum
Foxx Life Sciences EZLabpure™ Mixed CE(Cellulose Ester) Hydrophilic Membrane Filters, 0.8µm Pore Size, 47mm Diameter Membrane Filter Discs, Non Sterile, 50/PK
EZLabpure™ Mixed Cellulose Ester (MCE) Hydrophilic Membrane Filters are biologically inert and one of the most widely used membranes in research applications. With a smoother, more uniform surface than pure nitrocellulose filters, these membrane filter discs deliver superior flow rates and can withstand autoclaving up to 130°C without adversely affecting bubble point, flow rate, or microbiological recovery. Widely used for sterilizing biological fluids, microbiological testing, and analytical applications, these non-sterile membrane filter disc are available in 0.22 um, 0.45 um, and 0.8 um pore sizes across 13 mm, 25 mm, 47 mm, and 90 mm diameters with packaging options of 25/PK, 50/PK, and 100/PK. These Filtration Disc Membranes are biologically inert and one of the most widely used membranes in research applications