Filtration Membrane Discs
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
Sartorius Filtri a membrana in poliammide (nylon)
Recommended for particle-removing filtration of water, aqueous solutions and solvents for analytical determination. Sartorius Polyamide (Nylon) Membrane Filters are white, non-sterile filters without grids. Choose from two pore sizes in four diameters. Bulk packed for space and cost savings.
Sartorius Regenerated cellulose (RC) Membrane Filters
These solvent-resistant, hydrophilic membrane filters are excellently suited for particle removal from solvents.
Sartorius™ Filtri a membrana grigliati in nitrato di cellulosa (CN) sterili serie 11406
11406 Series Gridded Sterile Cellulose Nitrate (CN) Membrane Filters have a very uniform pore structure and high non-specific adsorption. Single-packed or dispenser-ready, these individually wrapped filters are ideal for colony counting, particle testing, microscopy, and sterility testing.
Sartorius™ 11106 Series Non-Sterile Cellulose Acetate (CA) Membrane Filters
11106 Series Non-Sterile Cellulose Acetate (CA) Membrane Filters combine high flow rates, good chemical resistance (pH 4-8), and thermal stability with very low adsorption characteristics. They are ideal for use in pressure filtration devices and different pore and diameter sizes are available.
Sartorius Stedim Biotech™ Microsart™ Cellulose Nitrate Membrane Filter Units, Gridded, White/Black, 0.45μm
Sartorius Stedim Biotech™ Microsart™ Cellulose Nitrate Membrane Filter Units, Gridded, White/Black 0.45μm combine a funnel, a filter base and a gridded membrane filter in one unit.
Sartorius Filtri a membrana in CA
Combinano caratteristiche di portata elevata e stabilità termica con bassissimo assorbimento. I filtri a membrana in acetato di cellulosa Sartorius sono particolarmente adatti per l'uso con dispositivi di filtrazione a pressione. I filtri non sterili, disponibili con numerosi diametri e dimensioni dei pori, sono forniti sfusi in confezioni di grandi dimensioni per un risparmio economico e di spazio.
Sartorius Gridded Sterile Cellulose Nitrate Membrane Filters: 0.65μm
Membrane Filters for Colony Counting, Particle Testing and Microscopy - Cellulose nitrate (cellulose ester), gridded, individually, sterile packaged
Sartorius Filtri a membrana CN
Combina una struttura di pori uniforme con portata e assorbimento elevati. I filtri a membrana in nitrato di cellulosa Sartorius sono perfetti per i kit diagnostici. I filtri non sterili, idrofili, con numerosi diametri e dimensioni dei pori, sono forniti in confezioni grandi per offrire un risparmio economico e di spazio.
Sartorius Filtri a membrana quadrettati in nitrato di cellulosa sterili: 0.45 μm
Controllo di qualità nella filtrazione microbiologica. I filtri a membrana quadrettati sterili in nitrato di cellulosa Sartorius, da 0.45 μm sono membrane confezionate singolarmente con griglie colorate per conta delle colonie, test delle particelle e microscopia. La dimensione dei pori di 0.45 μm è conforme alle direttive ISO 7704. Possibilità di scelta tra due diametri e una varietà di combinazioni di colore filtro/griglia.
Promozioni disponibili
Sartorius Polyethersulfone Membrane Filters
Polyethersulfone (PES) filters have a high internal porosity.
Sartorius Membrane in gelatina per monitoraggio aria ambiente
Per la raccolta di microbi e virus presenti nell'aria. Le membrane in gelatina per il monitoraggio dell'aria ambientale Sartorius garantiscono risultati affidabili e precisi. Sono sterili, idrosolubili e presentano un tasso di ritenzione elevato. Vasta scelta di filtri monouso confezionati singolarmente di dimensioni diverse, forniti con portafiltri o in confezioni di filtri a disco.
Sartorius Filtri a membrana in politetrafluoroetilene (PTFE)
Filter air and gasses, even at low differential pressures. Sartorius PTFE (Polytetrafluorethylene) Membrane Filters are permanently hydrophobic with low adsorption and excellent chemical compatibility. Choose from four pore sizes in a variety of diameters.