Whatman® Polymeric Membrane Filters

Whatman Cyclopore membranes are true pore size microporous membranes featuring sharp cut-off and reproducible microfiltration performance characteristics of track etched membranes. The smooth flat membrane ensures particles are retained on the surface so that they are easily visible under a microscope. Cyclopore membranes are manufactured rom a pure polymeric film using proprietary Whatman technology to produce a precision membrane filter with a closely controlled pore size distribution. They are free of contaminants and have 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 provide a higher optical contrast and make visibility under a microscope easy. There is a true surface capture which provides easy examination of samples and short analysis times. The totally transparent membranes have negligible absorption and adsorption of the filtrate and are non-hygroscopic. With low tare weights, there is no particle shedding which provides an ultra clean filtrate, and the membranes are biologically inert.

Typical applications
  • Air monitoring of Trace elements
  • 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. T
  • 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.

Product #

Description

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WHA70604704 Whatman® Cyclopore® polycarbonate and polyester membranes cyclopore PC circles, 0.4 μm, 47 mm, 100/pk
Z745782 Whatman® Cyclopore® polycarbonate and polyester membranes cyclopore PC circles, 1.0 μm, 47 mm, 100/pk
WHA70604710 Whatman® Cyclopore® polycarbonate and polyester membranes cyclopore PC circles, 1.0 μm, 47 mm, 100/pk
WHA70602513 Whatman® Cyclopore® polycarbonate and polyester membranes cyclopore PC circles, 5.0 μm, 25 mm, 100/pk
WHA70602502 Whatman® Cyclopore® polycarbonate and polyester membranes cyclopore PC circles, 0.2 μm, 25 mm, 100/pk
WHA70604712 Whatman® Cyclopore® polycarbonate and polyester membranes cyclopore PC circles, 3.0 μm, 47 mm, 100/pk.
WHA70604701 Whatman® Cyclopore® polycarbonate and polyester membranes cyclopore PC circles, 0.1 μm, 47 mm, 100/pk
WHA70602501 Whatman® Cyclopore® polycarbonate and polyester membranes cyclopore PC circles, 0.1 μm, 25 mm, 100/pk
WHA70604702 Whatman® Cyclopore® polycarbonate and polyester membranes cyclopore PC circles, 0.2 μm, 47 mm, 100/pk
WHA70602504 Whatman® Cyclopore® polycarbonate and polyester membranes cyclopore PC circles, 0.4 μm, 25 mm, 100/pk
WHA70604713 Whatman® Cyclopore® polycarbonate and polyester membranes cyclopore PC circles, 5.0 μm, 47 mm, 100/pk
WHA70601304 Whatman® Cyclopore® polycarbonate and polyester membranes PC, pore size 0.4 μm, diam. 13 mm
WHA70622513 Whatman® Cyclopore® polycarbonate and polyester membranes PC, pore size 5 μm, diam. 25 mm
WHA70604716 Whatman® Cyclopore® polycarbonate and polyester membranes PC, pore size 12 μm, diam. 47 mm
WHA70604714 Whatman® Cyclopore® polycarbonate and polyester membranes PC, pore size 8 μm, diam. 47 mm
Z754749 Whatman® Cyclopore® polycarbonate and polyester membranes PC, pore size 10 μm, diam. 47 mm
WHA70604715 Whatman® Cyclopore® polycarbonate and polyester membranes PC, pore size 10 μm, diam. 47 mm
WHA70632502 Whatman® Cyclopore® polycarbonate and polyester membranes cyclopore PC circles, pore size 0.2 μm, diam. 25 mm, black
WHA70602511 Whatman® Cyclopore® polycarbonate and polyester membranes cyclopore PC circles, pore size 2.0 μm, diam. 25 mm, pack of 100 ea
WHA70602514 Whatman® Cyclopore® polycarbonate and polyester membranes cyclopore PC circles, pore size 8.0 μm, diam. 25 mm, pack of 100 ea
WHA70602516 Whatman® Cyclopore® polycarbonate and polyester membranes cyclopore PC circles, pore size 12.0 μm, diam. 25 mm, pack of 100 ea
WHA70632504 Whatman® Cyclopore® polycarbonate and polyester membranes cyclopore PC circles, pore size 0.4 μm, diam. 25 mm, black, pack of 100 ea
WHA70634702 Whatman® Cyclopore® polycarbonate and polyester membranes cyclopore PC circles, pore size 0.2 μm, diam. 47 mm, black, pack of 100 ea
WHA70914710 Whatman® Cyclopore® polycarbonate and polyester membranes cyclopore PC circles, pore size 10.0 μm, diam. 47 mm, pack of 100 ea
WHA111213 Whatman® Nuclepore Track-Etched Membranes diam. 50 mm, pore size 5.0 μm, polycarbonate, pack of 100 ea
WHA111503 Whatman® Nuclepore Track-Etched Membranes diam. 76 mm, pore size 0.05 μm, polycarbonate, pack of 100 ea
WHA110416 Whatman® Nuclepore Track-Etched Membranes diam. 13 mm, pore size 12.0 μm, polycarbonate, pack of 100 ea