filtration

• Polypropylene (PP) Membrane Filters • Chemically Resistant and Versatile for High-Performance Filtration • Polypropylene (PP) membrane filters are a preferred choice for HPLC applications due to their excellent chemical resistance, even at elevated temperatures. This plastic polymer is highly adaptable and suitable for a wide range of liquid and gas filtration tasks, making it a reliable solution for both analytical and industrial applications. Typical Applications: • Filtration of aqueous and organic solvents • Depth filtration for high particulate loads • Sterilization of gases and trapping of aqueous aerosols • Air and gas venting in laboratory and process environments

• Cellulose Acetate Membrane Filters • Low Adsorption, High Flow Efficiency • Cellulose Acetate (CA) membrane filters are known for their high flow rates and exceptionally low protein binding, making them ideal for applications requiring minimal sample loss and high throughput. These membranes offer excellent mechanical stability and are suitable for both sterile filtration and particle removal. Typical Applications: • Sterile filtration of culture media • Microbe-retentive and particleremoving filtration of nutrient media, water, and aqueous solutions • Cell harvesting in biotechnology and research workflows

• Biologically Inert, Uniform Surface, High Performance • MCE membrane filters are biologically inert and among the most widely used membranes in analytical and research applications. Compared to pure nitrocellulose membranes, MCE membranes feature a smoother, more uniform surface, resulting in superior flow rates and reliable filtration performance. • These membranes can withstand autoclaving up to 130°C without compromising bubble point, flow rate, or microbiological recovery, making them ideal for sterilization processes. Typical Applications: • Commonly used in analytical and research laboratories • Sterilizing biological fluids • Microbiological testing and organism recovery

• Low Binding, High Flow, Broad Compatibility • PES membrane filters offer very low protein binding, high liquid flow rates, extended throughput, and minimal extractables, making them ideal for sensitive filtration processes. Their hydrophilic nature allows compatibility with both liquids and dry gases, making PES membranes suitable for use in a wide variety of laboratory and industrial environments. Typical Applications: • HPLC sample preparation • Sterilizing filtration of biological fluids and reagents • Sterile filtration in pharmaceutical and biotech settings • Clarification and particle removal from aqueous solutions

• Exceptional Chemical Resistance for Aggressive Solvent Filtration • Hydrophobic PTFE membrane filters are constructed from pure polytetrafluoroethylene (PTFE) laminated onto a polypropylene support layer. With extreme chemical compatibility (pH 1–14), they are ideal for filtering strong acids, solvents, and aggressive chemicals—applications where most other membrane types fail. • Due to their hydrophobic nature, these membranes must be pre-wetted with a suitable solvent (such as ethanol or methanol) before filtering aqueous solutions. Typical Applications: • HPLC sample preparation and organic solvent filtration • Air and gas filtration in sterile environments • Aerosol sampling for environmental monitoring and research

• High Flow, Low Binding, Versatile Filtration • Hydrophilic PVDF (Polyvinylidene Difluoride) membrane filters are engineered for excellent water wettability, delivering high flow rates and consistent filtration performance. Naturally hydrophobic, PVDF membranes are surface-modified to become hydrophilic, broadening their compatibility with aqueous solutions and non-aggressive organic solvents. Key Benefits: • High flow rate with minimal resistance • Low protein binding, making them ideal for sterilizing filtration of biological samples • Suitable for a wide range of applications involving aqueous media and mild solvents • Frequently used in pharmaceutical, biotechnology, and laboratory filtration tasks

• Nylon Membrane Filter are recommended for particles removing filtration for water, aqueous solutions and solvents for analytical determinations such as HPLC, as well as for the filtration of these liquids. • Size: 90mm, 142mm and 293mm also available • Pore size: 0.8μm, 1.2μm and 5.0μm also available

• The MGD/X range is specifically engineered for samples with high particulate content. These filters are constructed using pigment-free polypropylene housing and feature a pre-filtration stack of MGF (micro glass fiber media). This design minimizes the risk of sample contamination and reduces the manual effort required, even for the most challenging samples. Applications • MGD/X Syringe Filters are ideal for heavily particulate-laden samples in: • Dissolution Testing • Concentration Analyses • Content Uniformity Testing • Routine Sample Preparation

• Nylon - Suitable for aqueous and organic solutions • Offers excellent chemical compatibility and mechanical strength • Regenerated Cellulose (RC) - Provides fast flow rates with low protein binding • Ideal for applications requiring minimal analyte loss • Hydrophilic PTFE - Compatible with aqueous and mild organic solutions • Offers chemical resistance and low extractables • Hydrophobic PTFE - Designed for pure organic solvents • Highly resistant to aggressive chemicals • PES (Polyethersulfone) - Delivers high flow rates and low extractable levels • Preferred for filtration in biopharmaceutical and diagnostic applications • MCE (Mixed Cellulose Ester) - Biologically inert, widely used in analytical and research laboratories • Known for high porosity and consistent flow • Key Features:GHPLC Certified: Ensures low levels of organic extractables • IC Certified: Validated for low inorganic extractables • Color-Coded Housings: For quick and easy membrane identification.