Whatman™ 25mm Nuclepore™ Black Polycarbonate Membranes Available on GSA/VA Contract for Federal Government customers only.

Reduces background fluorescence in support of epifluorescence microscopy. Whatman™ 25mm Nuclepore™ Black Polycarbonate Membrane Filters improve visibility and help to distinguish microorganisms from other particulates.

Manufacturer: Whatman™ 110659

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Catalog No. 09-800-913

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    Pore Size 0.8μm
    For Use With (Application) Epifluorescence technique, potable ultrapure water food and dairy wine and clinical electronics
    Material Polycarbonate
    Diameter (Metric) Outer 25mm
    Color Black

    • Smooth, gridded polycarbonate track-etched (PCTE) membrane surface efficiently supports microorganism enumeration in a standard plate count
    • Extremely low nonspecific absorption 
    • Rapid standard plate count results
    • Compatible with the direct epifluorescent microscopy filter technique (DEFT), which allows microorganisms to be counted directly on a filter
    • DEFT can be conducted in under half an hour, sidestepping the standard > 24 hour process of incubating a microbial sample
    • Microscopic membrane filters are made by track-etching (polycarbonate is bombarded with radiation and chemically treated to create sharp, uniform filter pores)
    • Designed to trap microbes efficiently; more effective than other filter media for certain microorganisms

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