Nuclepore Hydrophilic Membrane, 1.0um Pore Size, 142mm Circle, 25 Pk SKU: 10418731

Polycarbonate Track-Etched (PCTE) Membrane Filters - 10418731

Designed to deliver reproducibility and confidence across critical sample types, the Whatman 10418731 provides the filtration consistency that method validation demands. Reproducible separation characteristics define the membrane structure, protecting downstream instruments and preserving sample integrity throughout the filtration process. In combination, controlled production conditions produce membranes with documented pore size distribution and thickness tolerances, supporting method reproducibility across multiple filter lots.

Material Specifications

• Non-sterile configuration is suited for analytical sample preparation, mobile phase filtration, and other workflows where pre-sterilization is not required.
• Uniform pore density across the membrane surface ensures representative sampling for environmental and biological particulate analysis.
• Track-etched Polycarbonate membranes feature perfectly cylindrical pores for absolute fractionation.
• Low protein binding and biologically inert surface properties make track-etched Polycarbonate compatible with cell biology and cytology workflows.
• Optically clear construction enables direct on-membrane visualization of captured particles without transfer or additional preparation.

Air monitoring and stack emissions sampling demand a filter medium that withstands the thermal and chemical conditions at your collection point — the material properties described above define the operating envelope for your application. Low background autofluorescence from polycarbonate membranes keeps your fluorescence microscopy signal-to-noise ratio high, ensuring that the fluorescent labels on your captured particles are what you see — not membrane interference. 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

142mm

Extractables

very low

Filtration Area

158.37cm²

Flow Rate

15 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)

1

Sterility

Nonsterile

Sterilization

Autoclavable at 121°C for 30 mins

Support Material

None

Wettability

Hydrophobic

• Erythrocyte Deformability - Mimics capillary dimensions to test red blood cell flexibility and rheology in clinical hemorheology research.
• 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.
• Legionella Recovery - Captures bacteria from hot water samples on a flat plane for direct fluorescent antibody staining and microscope counting.
• Parasite Detection - Concentrates blood samples to detect microfilariae on a transparent surface, simplifying identification without staining.
• Exosome Isolation - Separates extracellular vesicles from larger cell debris using defined pore sizes, preventing contamination in RNA analysis.