Pre-sterilized PES Membrane Syringe Filters with pre-filter

The Pre-Sterilized PES Membrane Syringe Filters with Prefilter from Scilabex are specially designed for sterile filtration of sensitive biological samples with high particulate content. Combining a Polyethersulfone (PES) membrane with a microglassfiber prefilter, these advanced laboratory syringe filters ensure maximum retention, high flow rates, and minimal clogging.

Widely used in laboratories across the USA and global markets, these filters are ideal for serum filtration, cell culture media preparation, and pharmaceutical applications.

What are Pre-Sterilized PES Syringe Filters with Prefilter?

These syringe filters feature a dual-layer filtration system:

• Hydrophilic PES membrane – low protein binding and high throughput
• Borosilicate microglassfiber prefilter – removes larger particles before final filtration

This combination ensures efficient filtration and extended filter life for high-value biological samples.

Applications

The Pre-Sterilized PES Syringe Filters with Prefilter are widely used in:

• Sterile filtration of serum solutions
• Sterile filtration of pure sera such as foetal calf serum and foetal bovine serum
• Sterile filtration of culture media

These filters are essential for maintaining sterility in sensitive biological workflows.

Special Features

• Absolute retention for reliable sterilization
• Low protein binding for maximum sample recovery
• High retention efficiency
• High throughput for faster filtration
• 16 channels for minimum back pressure
• Low extractables for accurate results
• Hydrophilic membrane for easy filtration

Specifications

Construction

• Pore Size: 0.2µm, 0.45µm
• Media: Polyethersulfone (PES) Membrane
• Prefilter Membrane: Borosilicate Microglassfiber
• Diameter:
  • 13mm
  • 25mm
• Inlet: Female luer-lock
• Outlet: Male luer slip
• Housing: Polypropylene

Operational

• Max. Operating Temperature: 55 °C
• Max. Differential Pressure: 75 psi @ 25°C
• Burst Pressure: >12 kg/cm²

Hold-up Volume (with air purge):

• <20µl (13mm)
• <50µl (25mm)

Sterilization

• Gamma irradiated up to 50 kGy
• Not suitable for autoclaving or steam sterilization

Effective Filtration Area:

• 0.8 cm² (13mm)
• 4.15 cm² (25mm)

Bubble Point:

• (0.2µm): >50 psi (>3.52 kg/cm²)
• (0.45µm): >32 psi (>2.25 kg/cm²)

Sample Volume:

• <10 ml (13mm)
• <100 ml (25mm)

Retention Efficiency:

• (0.45µm): LRV >7 for S. marcescens (ATCC 14756)
• (0.2µm): LRV >7 for Brevundimonas diminuta (ATCC 19146)

Key Benefits

Sterile & Ready to Use

• Gamma sterilized for immediate application
• Eliminates contamination risks

Maximum Sample Recovery

• Low protein binding preserves valuable samples
• Ideal for serum and biological solutions

Enhanced Filtration Efficiency

• Dual-layer filtration reduces clogging
• Improves clarity and performance

High Throughput

• Faster filtration with minimal back pressure
• Suitable for high-volume lab work

How to Use

1. Open the sterile packaging carefully
2. Attach the filter to a sterile syringe
3. Draw the sample into the syringe
4. Filter into a sterile container

Ordering Information

Type

Size

Pore Size

Inlet / Outlet

Sterility

Pack Size