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[Membrane] Cyclopore Polycarbonate and Polyester Membranes
관리자 2021-10-26 17:15:29
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yclopore membranes are manufactured using proprietary Whatman technology to produce a precision membrane filter with a closely controlled pore size distribution. Membranes are produced from a pure polymeric film and give exceptional chemical cleanliness. They are free of contaminants, have low tare weight, minimum water adsorption, and very low levels of nonspecific protein binding. The polycarbonate membranes are hydrophilic and are available in a choice of diameters and pore sizes. The polyester membranes are resistant to most organic solvents, amides, and halogenated hydrocarbons. This broad chemical compatibility makes them suitable for the detection of particles in many corrosive fluids.

 
Features and benefits
  • Low affinity for stains providing higher optical contrast and making visibility under a microscope easy
  • True surface capture provides easy examination of samples and short analysis times
  • Totally transparent membranes available
  • Negligible absorption and adsorption of filtrate; nonhygroscopic
  • Low tare weights
  • No particle shedding provides ultra clean filtrate
  • Biologically inert

 

 

Typical applications
  • Air monitoring
    Trace elements (chemicals, radioactivity) and particulate analysis (dust, pollens, and airborne particles)
  • Analytical methods
    Gravimetric analysis, densitometry, emission spectroscopy, x-ray fluorescence, and infrared analysis
  • Water analysis
    Absorbable organic halides (AOX), direct count of microorganisms, marine biology and dissolved phosphates, nitrates, and ammonia analysis
  • Blood filtration and cell analysis
    RBC deformability, leukocyte removal, RBC filtration and plasmapheresis, chemotaxis, cytology, and cell culture
  • General filtration
    Particulate and bacteria removal, cross flow filtration, HPLC sample preparation, and solution filtration
  • Microscopy
    Electron microscopy, epifluorescence microscopy, and direct optical microscopy
  • Microorganism analysis
    Direct total microbial count, harvesting, concentration, fractionation, yeast, molds, Giardia, Legionella, coliform, and canine microfilaria
  • Nucleic acid studies
    Alkaline elution and DNA fragment fractionation
  • Oceanographic studies
    Transparent polycarbonate membrane filters provide a new tool for studying planktonic organisms. These ultra thin transparent membranes are strong yet flexible, allowing for planktonic samples to be filtered and the membranes to be mounted directly onto microscope slides. (Ref: Hewes et al. 1998; Graham and Mitchell 1999; Graham 1999.)
  • Healthcare
    Biosensors – as a barrier offering controlled diffusion for biological reagents and electrochemical detectors.
    Diagnostic assays – for flow control, sample preparation, blood separation, and capture of latex microparticles.
    Cell biology – for cell culture, chemotaxis, and cytological analyses, e.g., direct staining, isotopic and fluorescence based assays.
    Transdermal drug delivery – as an inert matrix for retention of therapeutics.

Typical Data - Cyclopore Track Etched Membranes
  Polyester Polycarbonate
Thickness 9 to 23 µm 7 to 20 µm
Burst strength > 10 psi > 10 psi
Weight 0.9 to 2.3 mg/cm2 0.7 to 2.0 mg/cm2
Maximum service temperature 150°C 140°C
Porosity (void vol.) 4 to 20% 4 to 20%
Ash weight 2.3 µg/cm2 0.6 µg/cm2
Pore density 105 to 6 x 108 pores/cm2 105 to 6 x 108 pores/cm2
Opacity Translucent Translucent
Autoclavable 30 minutes at 121°C 30 minutes at 121°C
Specific gravity 1.39 g/cm2 1.21 g/cm2
Flammability Slow burn Slow burn
Fiber releasing No No
Leachables Negligible Negligible
Biological compatibility Inert Inert

 
Catalog Number Description
Cyclopore Polycarbonate Membranes
0.1 μm Pore Size
7060-2501 Cyclopore PC, circles, 0.1 µm, 25 mm, 100/pk
7060-4701 Cyclopore PC, circles, 0.1 µm, 47 mm, 100/pk
0.2 μm Pore Size
7060-2502 Cyclopore PC, circles, 0.2 µm, 25 mm, 100/pk
7060-4702 Cyclopore PC, circles, 0.2 µm, 47 mm, 100/pk
0.4 μm Pore Size
7060-1304 Cyclopore PC, circles, 0.4 µm, 13 mm, 100/pk
7060-2504 Cyclopore PC, circles, 0.4 µm, 25 mm , 100/pk
7060-4704 Cyclopore PC, circles, 0.4 µm, 47 mm, 100/pk
0.8 μm Pore Size
7060-1308 Cyclopore PC, circles, 0.8 µm, 13 mm, 100/pk
7060-2508 Cyclopore PC. circles, 0.8 µm, 25 mm, 100/pk
1.0 μm Pore Size
7060-2510 Cyclopore PC. circles, 1.0 µm, 25 mm, 100/pk
7060-4710 Cyclopore PC. circles, 1.0 µm, 47 mm, 100/pk
2.0 μm Pore Size
7060-2511 Cyclopore PC, circles, 2.0 µm, 25 mm, 100/pk
3.0 µm Pore Size
7060-4712 Cyclopore PC, circles, 3.0 µm, 47 mm, 100/pk.
5.0 μm Pore Size
7060-2513 Cyclopore PC, circles, 5.0 µm, 25 mm, 100/pk
7060-4713 Cyclopore PC, circles, 5.0 µm, 47 mm, 100/pk
8.0 μm Pore Size
7060-4714 Cyclopore PC, circles, 8.0 µm, 47 mm, 100/pk
10.0 μm Pore Size
7060-4715 Cyclopore PC, circles, 10.0 µm, 47 mm, 100/pk
12.0 μm Pore Size
7060-2516 Cyclopore PC, circles, 12.0 µm, 25 mm, 100/pk
7060-4716 Cyclopore PC, circles, 12.0 µm, 47 mm, 100/pk
Cyclopore Polycarbonate Clear Membranes
5.0 μm Pore Size
7062-2513 Cyclopore PC, clear circles, 5.0 µm, 25 mm, 100/pk
Cyclopore Polycarbonate Thin Clear Membranes
1.0 μm Pore Size
7091-2510 Cyclopore PC, thin clear circles, 1.0 µm, 25 mm, 100/pk
7091-4710 Cyclopore PC, thin clear circles, 1.0 µm, 47 mm, 100/pk
Cyclopore Polyester Membranes
0.1 μm Pore Size
7061-4701 Cyclopore PE, circles, 0.1 µm, 47 mm, 100/pk
0.2 μm Pore Size
7061-2502 Cyclopore PE, circles, 0.2 µm, 25 mm, 100/pk
0.4 μm Pore Size
7061-2504 Cyclopore PE, circles, 0.4 µm, 25 mm, 100/pk
1.0 μm Pore Size
7061-2510 Cyclopore PE, circles, 1.0 µm, 25 mm, 100/pk
5.0 μm Pore Size
7061-1313 Cyclopore PE, circles, 5.0 µm, 13 mm, 100/pk
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