Pre-sterilized PES Membrane Syringe Filters

The Pre-Sterilized PES Membrane Syringe Filters from Scilabex are designed for high-efficiency sterile filtration of sensitive biological and pharmaceutical samples. Made with Polyethersulfone (PES) membrane, these advanced laboratory syringe filters offer low protein binding, high throughput, and absolute retention for critical applications.

Widely used in laboratories across the USA and global markets, these filters are ideal for sterilizing valuable samples without compromising integrity.

What are Pre-Sterilized PES Syringe Filters?

These syringe filters are gamma sterilized and ready-to-use filtration devices designed to remove bacteria and fine particles from sensitive solutions. The PES membrane ensures minimal protein adsorption and maximum recovery.

They are commonly used for:

• Sterile filtration of biological samples
• Protein and enzyme solutions
• Pharmaceutical and research applications

Applications

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

• Sterilization of high-value additives such as hormones, vitamins, and antibiotics
• Sterilization of protein solutions, culture media, and buffers

These filters are essential for maintaining sterility in critical lab workflows.

Special Features

• Absolute retention for reliable sterilization
• Low protein binding for maximum sample recovery
• 16 channels for minimum back pressure
• High throughput for faster filtration

Specifications

Construction

• Pore Size: 0.2µm, 0.45µm
• Media: Polyethersulfone (PES) Membrane
• Diameter:
  • 4mm
  • 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):

• <5µl (4mm)
• <20µl (13mm)
• <50µl (25mm)

Sterilization

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

Effective Filtration Area:

• 0.07 cm² (4mm)
• 0.8 cm² (13mm)
• 4.15 cm² (25mm)

Bubble Point:

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

Clean Water Flow Rate @ 20 psi (0.2µm):

• 0.8 ml/min (4mm)

• 12 ml/min (13mm)

• 80 ml/min (25mm)

Clean Water Flow Rate @ 20 psi (0.45µm):

• 4 ml/min (4mm)

• 30 ml/min (13mm)

• 180 ml/min (25mm)

Sample Volume:

• <1 ml (4mm)
• <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 use
• Eliminates contamination risks

Low Protein Binding

• Ensures maximum recovery of valuable samples
• Ideal for biological applications

High Filtration Efficiency

• Absolute retention of bacteria and particles
• Reliable and consistent performance

High Throughput

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

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