Anotop 25mm Sterile Syringe Filters, 0.02 um, 50 Pk
Whatman SKU: 6809-2102

Whatman Anotop Aluminum Oxide Syringe Filters, 0.02 µm, 25 mm, 50/Pk - 6809-2102

Whatman manufactures under Cytiva's quality infrastructure, drawing on a filtration heritage that spans laboratory, environmental, and industrial applications. Sample preparation for chromatography often ends with a syringe filter on the path to the vial. Aluminum oxide keeps protein binding low to maximize sample recovery while sustaining high flow with a narrow pore distribution and handles aqueous and solvent samples cleanly. Polypropylene construction resists chemical degradation from routine sample matrices while keeping the fluid path low in extractable contamination and holds a reliable seal against the membrane edge. When sterile or particle-free preparation matters at the bench, the syringe filter delivers it with minimal added handling.

Technical Specifications

• Naturally hydrophilic ceramic surface wets without pre-wetting in aqueous samples
• Uniform capillary pore array gives high flow and high pore density
• Rigid inorganic structure withstands high temperatures with minimal extractables
• Chemically inert alumina compatible with aqueous solutions, alcohols, and organic solvents
• Absolute pore-size rating gives consistent retention across protocols

Housing Specifications

• Thermal-bonded construction keeps adhesives out of the fluid path
• Optimized internal geometry minimizes backpressure in service
• Medical-grade polypropylene with broad chemical compatibility
• Resists aqueous acids, bases, and alcohols in routine sample prep

Filtering particulates upstream protects the column investment your methods depend on. Upstream buffer clarification keeps avoidable particulates out of your flow path before they reach the column inlet or detector. Start a live chat with our customer support technicians for quick answers to your compatibility, sizing, and sterility questions.

For more information about chemical compatibility, please review our Chemical Compatibility Chart.

Bubble Point (psi)

6.9 bar (100 psi)

Burst Pressure (psi)

100psi

Connection Type

Luer-Lok/ Luer Slip

Construction

Anopore (Aluminum Oxide)

Diameter

25mm

Filtration Area

4.15cm²

Holdup Volume

<150µl

Material

Anopore

Maximum Operating Pressure

100psi

Maximum Operating Temperature (°C)

40°C

Pack Count

50

Pore Size (µm)

0.02

Prefilter (Yes/No)

No

Sterility

Nonsterile

Volume Throughput (ml)

Up to 100ml

Wettability

Hydrophilic

• Quality Control Testing - Optimized for delivering reproducible results by filtering contaminants in standard pharmaceutical protocols
• Research & Development - Supports protocols that need to filter contaminants, providing the ability to optimize sample clarity
• Analytical Sample Prep - Optimized to ensure data integrity by effectively filtering contaminants before instrumental analysis
• Environmental Monitoring - Ideal for filtering pollutants in water and wastewater analysis to ensure regulatory compliance
• Biological Fluid Analysis - Protects sensitive downstream instruments from filtering contaminants that can cause system failure
• General Laboratory Filtration - Increases workflow efficiency by optimizing sample clarity without sacrificing flow rates