Whatman
Nuclepore Hydrophilic Membrane, 12.0um Pore Size, 13mm Circle, 100/Pk SKU: 10418501

Polycarbonate Track-Etched (PCTE) Membrane Filters - 10418501

Designed to deliver reproducibility and confidence across critical sample types, the Whatman 10418501 provides the filtration consistency that method validation demands. Building on this foundation, verified 12.0 pore distribution across the Hydrophobic membrane surface guarantees batch-to-batch consistency in particle capture and analyte passage. On this basis, from raw polymer through final inspection, the manufacturing process is designed to ensure that every membrane disc meets the performance specifications of its grade designation.

Material Specifications

• Uniform pore density across the membrane surface ensures representative sampling for environmental and biological particulate analysis.
• Optically clear construction enables direct on-membrane visualization of captured particles without transfer or additional preparation.
• Supplied in bulk non-sterile packaging, offering an economical option for routine clarification and general laboratory filtration tasks.
• Offer a smooth, flat glass-like surface specifically designed for microscopy analysis.
• Low protein binding and biologically inert surface properties make track-etched Polycarbonate compatible with cell biology and cytology workflows.

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. Defined pore geometry gives you a membrane that functions as a precision sieve, capturing particles strictly by size rather than the impaction and diffusion mechanisms that depth filters rely on. Take control of your sample preparation variables and ensure that your data reflects the true nature of your work, rather than the quality of your consumables.

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

Bubble Point (psi)

N/A

Color

translucent

Diameter

13mm

Extractables

very low

Filtration Area

1.33cm²

Flow Rate

30 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

100

pH Range

2-11

Pore Size (µm)

12

Sterility

Nonsterile

Sterilization

Autoclavable at 121°C for 30 mins

Support Material

None

Wettability

Hydrophobic

• Oceanographic Sampling - Fractionates plankton populations by size in seawater, ensuring precise separation for biomass and diversity studies.
• Asbestos Analysis - Provides a smooth, flat surface for collecting airborne fibers, allowing for direct counting via phase-contrast light microscopy.
• Exosome Isolation - Separates extracellular vesicles from larger cell debris using defined pore sizes, preventing contamination in RNA analysis.
• Liposome Sizing - Used in extrusion devices to force lipid suspensions through exact pores, creating uniform unilamellar vesicles for drug delivery.
• Legionella Recovery - Captures bacteria from hot water samples on a flat plane for direct fluorescent antibody staining and microscope counting.
• Chemotaxis Migration - Acts as a precise barrier in Boyden chambers to measure cell migration towards chemoattractants without passive diffusion.