PES Centrifugal Filters, 30kDa MWCO, 50mL Conical, White Cap, Nonsterile, 96/Case
GVS SKU: CEF50W030KD08120

Featuring a low-binding hydrophilic polyethersulfone (PES) ultrafiltration membrane paired with a standard 50mL conical tube, this centrifugal filter device concentrates and purifies biological samples by molecular weight. The membrane carries a 30kDa molecular weight cut-off (MWCO), retaining macromolecules above the cut-off in the retentate while smaller solutes and water pass into the filtrate. A vertical membrane orientation promotes fast sample processing and high recovery while maintaining a gentle environment for labile and poorly expressed proteins.

Key PES Membrane Characteristics

• Hydrophilic polyethersulfone (PES) membrane with a defined 30kDa molecular weight cut-off for ultrafiltration of biological samples.
• Low protein and nucleic acid binding supports high sample recovery.
• Retains molecules above the MWCO while passing water and smaller solutes into the filtrate.
• Vertical membrane design provides fast sample processing and helps minimize fouling.
• Suited to concentration, desalting, and buffer exchange of proteins, nucleic acids, and similar biomolecules.

Key Construction Characteristics

• Housing constructed from acrylonitrile butadiene styrene (ABS) with a polypropylene (PP) 50mL conical centrifuge tube.
• White cap and sealing gasket made of polyethylene (PE).
• Fits centrifuges that accept standard 50mL conical tubes.
• Supplied nonsterile, 8 pieces per box, 12 boxes per case (96 per case).
• Operating temperature range of 0 degrees C to 40 degrees C.

This device delivers reliable, repeatable concentration of dilute samples while preserving target molecule integrity. The dead-stop feature helps prevent samples from spinning to dryness, protecting valuable sample volumes. The combination of a low-binding PES membrane and a standard conical format provides a straightforward, gentle workflow for downstream analysis.

Capacity

50mL conical tube

Color

White

Material

Polyethersulfone (PES)

Maximum Operating Temperature (°C)

40

MWCO(Da)

30000

Pack Count

96

Sterility

Nonsterile

Wettability

Hydrophilic

• Protein Concentration Concentrates dilute protein solutions by retaining species above the 30kDa cut-off while removing buffer and smaller solutes.
• Buffer Exchange Facilitates exchange of sample buffers during preparation of biological samples for downstream work.
• Desalting Removes salts and low molecular weight contaminants from macromolecule samples.
• Nucleic Acid Sample Prep Concentrates and purifies nucleic acid samples using the low-binding PES membrane.
• Biological Sample Purification Separates sample components by molecular weight for clarification and purification of biological samples.
• Viral Particle Concentration Concentrates virus particles and other macromolecules above the molecular weight cut-off.