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
Sterlitech Corporation Polyester (PETE) Membrane Filters, 0.4 Micron, 47mm, 100/Pk
Sterlitech polyester track etch (PETE) membrane filters, 0.4 micron pore size, 47 mm diameter, pack of 100. Hydrophilic, solvent resisant film for blood assays, microscopy, and highly caustic samples.
Sterlitech Corporation Aluminum Oxide Membrane Filters, 0.02 Micron, 13mm, 10/pk
Aluminum oxide membranes feature uniform, densely-packed honeycomb pore structures that contribute to precise retention and high porosity characteristics.Applications:* HPLC sample and mobile phase filtration* Filtration of aggressive organic solvents* Virus concentration and analysis* Analysis of micro plastic in water* Epifluorescence microscopy* Synthesis of nanostructures (e.g. nanotubes)Features:* Fast filtration, efficient separation and high purity* High number of tightly controlled pores in honeycomb shape* Free of organic extractables and leachables* Minimum adsorption* Transparent when wet
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%.
Alkali Scientific CellPro™ DEPC Treated Ultra Pure Water, 500mL
DEPCTreated Water,Certified Nuclease Free, sterile, 500mL x 10 Bottles / Case
Alkali Scientific ProCycle™ Pre-cut Sealing Membranes, Sterile, qPCR Optical (pressure-sensitive adhesive) ABI™ 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%.
IW Tremont Co Inc LabExact Hydrophobic PTFE membrane, NON-STERILE, 0.45 micron, 47mm diameter, pack of 100
LabExact Polytetrafluoroethylene (PTFE) Membrane is supported with a polypropylene (PP) scrim for easier handling. This scrim is bonded using a unique technique utilizing no bonding agent for purity, chemical compatibility and lower extractables. Hydrophobic material is effective in separating polar/nonpolar solvents. Aqueous solutions can pass after prewetting with methanol
IW Tremont Co Inc LabExact Hydrophilic Nylon membrane, NON-STERILE, 0.45 micron, 47mm diameter, pack of 100
LabExact Nylon Membrane is supported with a polyethylene terephthalate (PET) scrim for added support. This scrim is bonded to the nylon using a unique technique with no bonding agent for purity, chemical compatibility and lower extractables. Hydrophilic material eliminates need for wetting agents. Strong protein bonding with high recoveries
Sterlitech Corporation Polycarbonate (PCTE) Membrane Filters, 0.08 Micron, 25mm, 100/Pk
PCT00825100 - Polycarbonate (PCTE) Membrane Filters, 0.08 Micron, 25mm, 100/Pk
Microsolv Technology Corporation Filter Memb .45 Ptfe 47Mm 100P
Filters, Membrane, 47mm, 0.45um, PTFE. Round, AQ Brand. 100/PK.
MDI Membrane FLTR MDI GCN 47MM .45 EO 100PK
mdi grid marked Cellulose Nitrate membrane filters, 47 mm, 0.45 µm, EO-sterile, 100 PK
MDI Membrane FLTR MDI CN 47MM 0.2 EO 100PK
mdi Cellulose Nitrate membrane filters, 47 mm, 0.2 µm, EO-sterile, 100 PK
Andwin Scientific FILTR VERSAPOR 3UM 25MM PK/100
The 3um/25mm Versapor 3000 Membrane Disc Filter is ideal for prefiltration of difficult to filter solutions and serum. It can reduce clogging of final filters.