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 Polyethersulfone (PES) Membrane Filters, 1.2 Micron, 47mm, 100/Pk
Sterlitech PES (polyethersulfone) membrane filters, 1.2 micron pore size, 47 mm diameter, pack of 100. Hydrophilic, low protein/drug binding, minimal extractables, and broad chemical tolerance; ideal for pharmaceutical, medical, and life science applications.
Tisch Scientific Nylon membrane roll stock, 0.22 um, 300mm (width) x 3m (length), with PET substrate, RS10233
Nylon membrane roll stock, 0.22um, 300mm (width) x 3m (length) with PET substrate
This product has not been established as a suitable replacement for N95 mask material or any other PPE application. In addition, please be aware that we are not able to accept any returned products.
Boca Scientific Inc Mobicol filters (large/upper), 10µm pore size, 50/pack
This filter (large/upper) has a 10 µm pore size and is designed for use with Mobicol M1002, M1003, M1050 and M1053. 50 filters are included.
Andwin Scientific SUPOR 200 0.2UM 47MM 100PK
The Supor 200 PES Membrane Disc Filters are ideal for use in biological, pharmaceutical, and sterilizing filtration applications. This product provides quick filtration with the best flow rates and high throughputs. The filters feature low protein binding and compatibility with a wide range of drugs for demanding procedures. This product has a diameter of 47 mm and a pore size of 0.2 m, and is sold in a pack of 100.
Polyscience polycool MIX -25 (Case)
PolyScience™ PolyScience°polycool MIX -25-25 to 100°C Temperature RangeCase of 5 x 1/2 gallon (1.9 L) BottlesFeatures:• Optimizes performance in refrigerated products; protects against freezing. Keeps reservoir clean
Sterlitech Corporation Sterlitech Silver Membrane, 0.45 Micron, 47mm, 25/Pk
Pure metallic silver (99.97% pure silver), hydrophilic membrane filter, pore rating of 0.45 microns and a diameter of 47 mm
Sterlitech Corporation Sterlitech Silver Membrane, 5 Micron, 47mm, 25/Pk
SILVER MEMBRANE FILTERS, 5.0 MICRON, 47MM, 25/PK
Sterlitech Corporation Polyethersulfone (PES) Membrane Filters, 0.8 Micron, 25mm, 100/Pk
POLYETHERSULFONE (PES) MEMBRANE FILTERS, 0.8 MICRON, 25MM, 100/PK
Macherey-Nagel MN Bead Tubes Type B, 50 Pieces
2 mL tubes with 40–400 µm glass beads; for homogenization of Gram-positive and Gram-negative bacteria
Sterlitech Corporation PTFE Unlaminated Membrane Filters, 1.0 micron, 25mm, 50/pk
PTFE MEMBRANE FILTERS, UNLAMINATED, 1.0 MICRON, 25MM, 50/PK
Sterlitech Corporation Nylon Membrane Filters, 5.0 Micron, 47mm, 100/Pk
Nylon Membrane Filters, 5.0 Micron, 47mm, 100/Pk