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
Med Vet International Mini Cuttable T-Plate 9 Holes, Large, J1337B, Each
Mini Cuttable T-Plate 9 Holes, Large, J1337B, Each
Azzota Corp MPF PES 47mm 0.80u S 100pk
Microporous Filter PES Diameter 47mm Pore Size 0 80um 100/pk Sterile
Microsolv Technology Corporation Filters, Membrane, 47mm, 0.45um, PVDF. Round, 100/PK.
These high flow, non media migrating, Polyvinylidene Fluoride (PVDF) Advanced Quality (AQ) Brand, Filter Discs can be used with the Mobile Phase Filter Degasser Assembly or any device when membrane filtration is desired.Hydrophilic, they are low protein binding and can be autoclaved at 121⁰C for 30 minutes or EO sterilization without damage to the integrity or performance of the filter. Diameter: 47mm Max Operating Temperature: 80⁰C Bubble Point: 30psi (2.10 kg/cm2) Water Flow Rate: 30ml/min/cm2 @ 10 psi, 27⁰C Thickness: 135um +- 15um Extractables with WFI (water): Within USP Limits Oxidizable Substances: Passes USP Test Pore Size: 0.45 um
Azzota Corp MPF PVDF 47mm 0.45u S 100pk
Microporous Filter PVDF Diameter 47mm Pore Size 45um 100/pk Sterile
Azzota Corp MPF PTFE 47mm 0.22u S 100pk
Microporous Filter PTFE Diameter 47mm Pore Size 0 22um 100/pk Sterile
Azzota Corp MPF PTFE 47mm 0.45u S 100pk
Microporous Filter PTFE Diameter 47mm Pore Size 0 45um 100/pk Sterile
Azzota Corp MPF CN-CA 50mm 0.22u 100pk
Microporous Filter CN-CA Diameter 50mm Pore Size 0 22um 100/pk
Foxx Life Sciences EZFlow Nylon Hydrophilic Membrane Filters, 0.45um, 90mm Diameter Filter Discs, 25/PK
364-3811-OEM: EZFlow Membrane Disc Filter, 0.45um Nylon, 90mm, 25/pack. EZFlow 13mm, 25mm, 47mm, and 90mm membrane disc filters are used to retain particles or microorganisms by surface capture. The membrane disc filters are available in Nylon or Hydrophobic PTFE with polypropylene support, in 0.2um or 0.45um pore sizes. The Nylon membrane has great chemical resistance, and is ideal for filtering more aggressive solutions such as alcohols and DMSO. The Hydrophobic PTFE membrane is bonded to a polypropylene support. Due to its extreme chemical compatibility, they are ideal for the filtration of solvents and acids, or other aggressive chemicals. All materials comply with USP Class VI Standards and FDA compliances.