Nuclepore Hydrophilic Membrane, 2.0um Pore Size, 90mm Circle, 25 Pk SKU: 10418818

Polycarbonate Track-Etched (PCTE) Membrane Filters - 10418818

Engineered for high retention efficiency and superior chemical stability, the Whatman 10418818 achieves reliable separation results across a broad range of analytical and preparative applications. Designed for laboratory performance, precision-manufactured Hydrophobic membrane with a verified 2.0 pore structure delivers consistent retention across the full operating range. In turn, lot-level verification of pore size, flow rate, and physical dimensions ensures that membrane performance remains predictable when scaling from method development to routine analysis.

Material Specifications

• Manufactured with tight pore size control for precise separation of cells and particulates.
• Optically clear construction enables direct on-membrane visualization of captured particles without transfer or additional preparation.
• Uniform pore density across the membrane surface ensures representative sampling for environmental and biological particulate analysis.
• Non-sterile configuration is suited for analytical sample preparation, mobile phase filtration, and other workflows where pre-sterilization is not required.
• Offer a smooth, flat glass-like surface specifically designed for microscopy analysis.

Scaling your method from development to routine production requires membrane consistency at every lot — the documented specifications of these membranes provide the reproducibility needed to validate the filtration step once. Polycarbonate's optical clarity when wet allows direct on-membrane visualization without clearing or staining steps, streamlining your microscopy workflow and reducing the sample preparation time between filtration and analysis. Make the decision for consistency and reliability, ensuring that your laboratory maintains its reputation for high-quality, error-free output.

For more information about chemical compatibility, please review our Chemical Compatibility Chart.

Bubble Point (psi)

N/A

Color

translucent

Diameter

90mm

Extractables

very low

Filtration Area

63.62cm²

Flow Rate

18 L (Air)

Grid (Yes/No)

No

Material

Polycarbonate (PC)

Maximum Operating Pressure

Holder-dependent

Maximum Operating Temperature (°C)

140°C

Membrane Thickness (µm)

6–11um

Pack Count

25

pH Range

2-11

Pore Size (µm)

2

Sterility

Nonsterile

Sterilization

Autoclavable at 121°C for 30 mins

Support Material

None

Wettability

Hydrophobic

• Liposome Sizing - Used in extrusion devices to force lipid suspensions through exact pores, creating uniform unilamellar vesicles for drug delivery.
• Oceanographic Sampling - Fractionates plankton populations by size in seawater, ensuring precise separation for biomass and diversity studies.
• Chemotaxis Migration - Acts as a precise barrier in Boyden chambers to measure cell migration towards chemoattractants without passive diffusion.
• Asbestos Analysis - Provides a smooth, flat surface for collecting airborne fibers, allowing for direct counting via phase-contrast light microscopy.
• Erythrocyte Deformability - Mimics capillary dimensions to test red blood cell flexibility and rheology in clinical hemorheology research.
• Legionella Recovery - Captures bacteria from hot water samples on a flat plane for direct fluorescent antibody staining and microscope counting.