LabExact
CA Syringe Filter, Nonsterile - 0.45µm, 4mm, Hydrophilic, Low Protein Binding, 200/Pk SKU: LE-IWT-ES-10612

Featuring hydrophilic cellulose acetate membrane technology delivering exceptional performance for aqueous sample preparation and HPLC analysis. The nitrate-free construction makes these filters ideally suited for groundwater analysis and EPA ASTM methods¹, while very low protein binding capacity ensures maximum sample recovery in biological applications. High flow rates and thermal stability combined with very low adsorption characteristics optimize processing efficiency for routine laboratory filtration and chromatography sample preparation.

Key Cellulose Acetate Membrane Characteristics

Naturally hydrophilic membrane eliminates pre-wetting requirements and begins filtration immediately upon sample contact
Exceptionally low protein binding capacity maximizes sample recovery rates for biological fluids and protein-based solutions
Fast flow rates and thermal stability with minimal absorption properties accelerate sample processing workflows
Nitrate-free material construction ensures compatibility with groundwater analysis and EPA ASTM analytical protocols¹
0.45µm pore size configuration provides reliable particulate retention while maintaining optimal flow characteristics

Key Construction Characteristics

Ultrasonically bonded polypropylene housing delivers leak-resistant performance with standard Luer-Lok® connection compatibility
Concentric funnel-shaped barrel design increases sample volume capacity while reducing back pressure during filtration
4mm compact diameter optimizes handling efficiency for small-volume sample preparation applications
Clearly inscribed filter media identification on barrel ensures proper selection and traceability
Nonsterile packaging provides cost-effective solution for routine analytical and research applications

These syringe filters provide simple and cost-effective sample preparation ensuring reliable, reproducible chromatography by preventing particulates from entering injectors or columns. Outstanding unit-to-unit and lot-to-lot reproducibility delivers consistent analytical results, while broad chemical compatibility with aqueous and protein-based HPLC solutions maximizes your analytical flexibility. Designed to sterilize and remove particulates from even the most viscous proteinaceous samples, these filters excel in applications requiring maximum sample recovery including media sterilization, serum preparation, and biological fluid clarification.

¹ EPA ASTM Methods for Water Analysis: https://www.epa.gov/water-research/methods-chemical-analysis-water-and-wastes