The Cyclopore black membrane filter is a polycarbonate track etch membrane (PCTE membrane) that provides a contrast background for epifluorescence and other microscopy applications.

• High sample visibility, provided by the black membrane filter surface
• Negligible absorption and adsorption of filtrate; nonhygroscopic
• Temperature resistant up to 140 °C
• Low tare weight

Cytiva's business offers a variety of Whatman PCTE membrane filters for gravimetric analyses.

Because of their low background fluorescence, microfiltration membranes with a dark surface can improve test sensitivity in epifluorescence. Cyclopore black membrane filters offer a consistent contrasting background for excellent visibility during particle analysis.

Browse the range of Whatman track-etched membranes to find other Cyclopore membranes and Nuclepore application-specific membranes for organic halide adsorption and electron microscopy.