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 Polycarbonate (PCTE) Membrane Filters, 0.08 Micron, 25mm, 100/Pk
PCT00825100 - Polycarbonate (PCTE) Membrane Filters, 0.08 Micron, 25mm, 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
Izon Science Usa Ltd Nanopore NP200 (85-500 nm)
This item has a minimum order quantity of 3 per supplier requirements
NP200 (85-500 nm)Quality Assured Membranes Containing a Single Nanopore
MDI Membrane FLT MDI EHCN 47MM .45 EO 100PK
mdi Cellulose Nitrate membrane filters with Hydrophobic Edge for Antibiotics, 47 mm, 0.45 µm, EO-sterile, 100 PK
Alkali Scientific CellPro™ DEPC Treated Ultra Pure Water, 1.0 Liter x 12 Bottles/cs
DEPC Treated Water (and therefore RNase-free) water is used in handling of RNA in the laboratory to reduce the risk of RNA being degraded by RNases. Water is usually treated with 0.1% v/v DEPC for at least 2 hours at 37 °C and then autoclaved (at least 15 min) to inactivate traces of DEPC. Inactivation of DEPC in this manner yields CO 2 and ethanol.
Microsolv Technology Corporation Filter Memb .45 Ptfe 47Mm 100P
Filters, Membrane, 47mm, 0.45um, PTFE. Round, AQ Brand. 100/PK.
Sterlitech Corporation PTFE Unlaminated Membrane Filters, Hydrophilic, 0.5 Micron, 47mm, 100/Pk
Durable, efficient, and broadly compatible, these pure, hydrophilic PTFE membranes are ideal for use with HPLC seperations, aqueous/organic solvents, and many of your other filtration needs. Pack of 100. Pore size: 0.50 microns. Diameter: 47 mm. Advantec P/N: H050A047A.