Clear sodium chloride disc used in an infrared spectrophotometer

An excellent, faster-working alternative to traditional gravity-based liquid filtration.

Produces ultrapure water from Deionized (DI) water

Manufactured from high-quality polycarbonate film and track-etched for high pore size precision. Whatman™ 25mm Nuclepore™ Polycarbonate Track-Etched Membranes combine high flow rates and chemical and thermal resistance with sharply defined pores, making them suitable for microscopy, cytology, parasitology, and certain air and oceanography analyses.

Manufactured from high-quality polycarbonate film and track-etched for high pore size precision. Whatman™ 19mm Nuclepore™ Polycarbonate Hydrophilic Membranes combine high flow rates and chemical and thermal resistance with sharply defined pores, making them suitable for microscopy, cytology, parasitology, and certain air and oceanography analyses.

Manufactured from high-quality polycarbonate film and track-etched for high pore size precision. Whatman™ 293mm Nuclepore™ Polycarbonate Hydrophilic Membranes combine high flow rates and chemical and thermal resistance with sharply defined pores, making them suitable for microscopy, cytology, parasitology, and certain air and oceanography analyses.

Manufactured from high-quality polycarbonate film and track-etched for high pore size precision. Whatman™ 47mm Nuclepore™ Polycarbonate Hydrophilic Membranes combine high flow rates and chemical and thermal resistance with sharply defined pores, making them suitable for microscopy, cytology, parasitology, and certain air and oceanography analyses.

Recommended for majority of routine applications, this membrane is manufactured under strictly controlled conditions.  Whatman™ Type WCN Cellulose Nitrate Membranes narrow pore size distribution for improved surface capture and analysis.

Designed to isolate nucleic acids and proteins from agarose or polyacrylamide gel slices

Ensures visibility of particles under the microscope with smooth membranes and low affinity for stains. Whatman™ Cyclopore™ Polycarbonate Membrane Filters can also reproduce microfiltration characteristics of track-etched membrane filters.

Whatman™ Mixed Cellulose Ester Membrane Filters are biologically inert and offers high degree of internal surface area for greater product adsorption.

Universal filter made from pure polyamide for clarification and sterile filtration

Manufactured from high-quality polycarbonate film and track-etched for high pore size precision. Whatman™ Nuclepore™ Polycarbonate Hydrophilic Membrane Sheets combine high flow rates and chemical and thermal resistance with sharply defined pores, making them suitable for microscopy, cytology, parasitology, and certain air and oceanography analyses.

Carry out particualte and microbial analysis with these filter membranes. Available in various forms for water quality work, cold sterilization or sample clean up.

Suited for applications involving aggressive organic solvents, strong acids, and alkalis due to being chemically stable and inert. Whatman&trade WTP Range PTFE Membranes are particularly suitable for preparing samples for HPLC analysis, air and gas sterilization.

Consists of pure cellulose without any wetting agents

Prepares liquid scintillation cocktail for scintillation counter measurements. Whatman™ Cellulose Acetate Membranes are highly heat resistant and can filter hot liquids and hot gases.

Provides a contrast background for epifluorescence and other microscopy applications. Whatman™ Cyclopore™ Polycarbonate Black Membrane Filters improve test sensitivity with low background fluorescence.

Flexible and durable for easier handling.   GE Healthcare Nylon Membranes are naturally hydrophilic, eliminating need for wetting agents and prewetting when filtering aqueous solutions.

Combines PVP-free polycarbonate with sharp, uniform cylindrical pores. Whatman™ PVP-Free Polycarbonate Cell Culture Membranes achieves a delicate balance between cell adhesion and migration for effective chemotaxis.

Provides clarification of corrosives, solvents, and aggressive fluids. Whatman™ PTFE Membrane Circles are particularly useful in HPLC analysis when solid particles can cause permanent damage to the column.

Consists of pure cellulose without any wetting agents

GE’s Nuclepore filters are manufactured from high-quality polycarbonate film, with sharply defined pore sizes and high flow rates for reproducible AOX analysis.

Manufactured from high-quality polycarbonate film and track-etched for high pore size precision. Whatman™ 13mm Nuclepore™ Polycarbonate Hydrophilic Membranes combine high flow rates and chemical and thermal resistance with sharply defined pores, making them suitable for microscopy, cytology, parasitology, and certain air and oceanography analyses.

Constructed with precision pore structure and narrow pore size distribution. Whatman™ Anodisc™ Filter Membranes ensure a high level of particle removal efficiency. Captures microorganisms and particulates on the surface of the membrane for subsequent analysis.

For use with epifluorescence microscopy and applications requiring contrasting background.

Accessories to membrane filters for support

Manufactured from high-quality polycarbonate film and track-etched for high pore size precision. Whatman™ 50mm Nuclepore™ Polycarbonate Track-Etched Membranes combine high flow rates and chemical and thermal resistance with sharply defined pores, making them suitable for microscopy, cytology, parasitology, and certain air and oceanography analyses.

Manufactured from high-quality polycarbonate film and track-etched for high pore size precision. Whatman™ Polycarbonate Hydrophilic Membranes combine high flow rates and chemical and thermal resistance with sharply defined pores, making them suitable for microscopy, cytology, parasitology, and certain air and oceanography analyses.

Nuclepore track-etched polycarbonate gold-coated membrane