Anotop Plus 25mm Syringe Filter w/GMF PreFilter, 0.2um, 50 Pk
Whatman SKU: 6809-4022

Whatman Anotop Aluminum Oxide Syringe Filters, 0.2 µm, 25 mm, 50/Pk - 6809-4022

Whatman's established manufacturing platform delivers the consistency and lot-level documentation that analytical laboratories require. Under hand pressure from the syringe, the membrane captures particulates as the sample passes through. Hydrophilic aluminum oxide accepts water-based reagents without preconditioning while holding protein adsorption low across the run and stays compatible with aqueous samples, alcohols, and organic solvents. The polypropylene housing resists aqueous acids, bases, and alcohols and keeps the fluid path low in extractable contamination. For routine sample preparation across many methods, the syringe filter folds clarification into one disposable step.

Technical Specifications

• Absolute pore-size rating gives consistent retention across protocols
• Rigid inorganic structure withstands high temperatures with minimal extractables
• Naturally hydrophilic ceramic surface wets without pre-wetting in aqueous samples
• Uniform capillary pore array gives high flow and high pore density
• Low protein binding preserves dilute analytes for maximum sample recovery

Housing Specifications

• Low extractable contribution protects sensitive downstream analyses
• Reliable housing-to-membrane seal prevents bypass at rated pressure
• Thermal-bonded construction keeps adhesives out of the fluid path
• Optimized internal geometry minimizes backpressure in service

A clean particulate separation keeps your aqueous sample preparation dependable. General-purpose aqueous filtration supports the sample types you handle every day across your water-analysis and general analytical workflows. Connect with our customer support technicians for chemical compatibility guidance and the right filtration product for your workflow.

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

Bubble Point (psi)

6.2 bar (90 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)

0.2

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
• Sample Clarification - Optimizing sample clarity via rapid filtering of contaminants to maintain high throughput in busy laboratories
• Research & Development - Supports protocols that need to filter contaminants, providing the ability to optimize sample clarity
• Environmental Monitoring - Ideal for filtering pollutants in water and wastewater analysis to ensure regulatory compliance
• Analytical Sample Prep - Optimized to ensure data integrity by effectively filtering contaminants before instrumental analysis
• General Laboratory Filtration - Increases workflow efficiency by optimizing sample clarity without sacrificing flow rates