Nylon Membrane Filter Discs, 0.22um, 47mm, Nonsterile, White, 100/Pk
GVS SKU: 1213769

Featuring a naturally hydrophilic Nylon 66 membrane, these 47mm filter discs deliver 0.22um filtration without the wetting agents that can interfere with biological processes. The membrane is internally supported with an inert polyester web that provides added dimensional strength and stability, preventing cracking, tearing, curling, and breaking during handling. Each plain white, non-gridded disc supports general filtration and analytical sample preparation, and packs contain 100 discs.

Key Nylon Membrane Characteristics

• Naturally hydrophilic: wets out evenly and eliminates the need for wetting agents that can potentially interfere with biological processes.
• Polyester support web: an inert internal support web adds dimensional strength and stability, preventing cracking, tearing, curling, and breaking.
• High porosity: 70 to 80 percent porosity provides high diffusion and low flow resistance.
• Low extractables: helps keep tests clean and pure for more consistent results.
• Binding capacity: 350 micrograms per square centimeter for effective immobilization of biomolecules.

Key Construction Characteristics

• Pore size: 0.22um for fine clarification and microbiological work.
• Diameter: 47mm disc format compatible with standard filter holders and funnels.
• Sterility: nonsterile, supplied 100 discs per pack.
• Appearance: plain white membrane, not gridded.

These discs maintain consistent flow and retention across the filtration cycle, helping protect downstream analyses and preserve sample integrity. The durable polyester-supported structure withstands aggressive handling and automated equipment, providing reliable, repeatable performance for routine laboratory filtration.

Binding Capacity

350 µg/cm²

Color

White

Diameter

47mm

Grid (Yes/No)

No

Material

Nylon (Nylon 66)

Membrane Color

White

Pack Count

100

Pore Size (µm)

0.22

Sterility

Nonsterile

Support Material

Polyester

Wettability

Hydrophilic

• Sample Clarification Removes particulates from aqueous and compatible organic solutions to produce clean, analysis-ready samples.
• HPLC and GC Solvent Filtration Filters mobile phases and solvents to protect chromatography systems and improve data quality.
• Microbiology The 0.22um pore size supports retention of microorganisms during general microbiological filtration.
• Molecular Biology Transfers The high binding capacity supports Southern and Northern transfers, colony lifts, and plaque lifts.
• Biological Solution Filtration The naturally hydrophilic membrane processes aqueous biological solutions without interfering wetting agents.
• General Laboratory Filtration Polyester-supported strength withstands aggressive handling for routine and automated filtration tasks.