Featuring a naturally hydrophilic polyethersulfone (PES) membrane with a 0.22um pore size and a 25mm membrane diameter, these syringe filters deliver rapid, high-throughput filtration of aqueous and organic solutions. The PES membrane provides very low protein and drug binding, wide chemical compatibility, and fast flow rates, making it well suited for sensitive analytical sample preparation. The transparent polypropylene housing supports the membrane bidirectionally, allowing either sample injection or aspiration, while an improved flow channel design lowers hold-up volume to maximize recovery of small or costly samples.
Key PES Membrane Characteristics
- Naturally hydrophilic for filtration of aqueous, biological, and protein-based solutions without pre-wetting
- Very low protein and drug binding to maximize recovery of critical analytes
- Low extractables and a wide chemical compatibility range for both organic and aqueous samples
- Fast flow rates that increase throughput and speed of sample preparation
- Strength and dimensional stability that withstand aggressive handling and automated equipment
Key Construction Characteristics
- Transparent polypropylene housing that bidirectionally supports the membrane
- Luer-Lok inlet and Luer Slip outlet connections for broad syringe and instrument compatibility
- Nonsterile, supplied 500 per pack
- Improved flow channel design that reduces hold-up volume
- Maximum operating pressure up to 75 psi
Each device is integrity tested to ensure a proper filter fit and weld, eliminating potential filter by-pass for reliable, repeatable performance. Each filter is labeled with the specific membrane material and pore size for easy identification even when removed from its original packaging. Together these features help protect downstream instruments and preserve sample integrity across routine and critical filtration tasks.
- Color
- Transparent
- Connection Type
- Luer-Lok/Luer Slip
- Construction
- Polypropylene housing
- Diameter
- 25mm
- Inlet Connection
- Female Luer Lock
- Material
- Polyethersulfone (PES)
- Maximum Operating Pressure
- 75 psi
- Outlet Connection
- Male Luer Slip
- Pack Count
- 500
- Pore Size (µm)
- 0.22
- Sterility
- Nonsterile
- Wettability
- Hydrophilic
- Sterile Filtration The 0.22um PES membrane removes bacteria and particulates for sterilizing filtration of biological fluids, buffers, and tissue culture media.
- HPLC and Analytical Sample Prep Clarifies aqueous, biological, and protein-based solutions prior to chromatography or instrument analysis with very low protein binding.
- Pharmaceutical Filtration Low protein and drug binding maximizes recovery of critical drugs used in IV therapy and related applications.
- Tissue Culture Media Sterilization Provides sterile filtration of cell culture media and supplements with fast flow and high throughput.
- Protein and Enzyme Filtration Filters protein and enzyme solutions while preserving sample integrity through low binding characteristics.
- Environmental Water Studies Prepares aqueous environmental samples with low extractables for accurate analysis of ionic species.