Anotop 10mm Syringe Filter, 0.2um, 50 Pk
Whatman SKU: 6809-1022

Whatman Anotop Aluminum Oxide Syringe Filters, 0.2 µm, 10 mm, 50/Pk - 6809-1022

Whatman's Anotop line separates by physical particle dimension alone, a capability rooted in ceramic media chemistry rather than the organic polymer chemistries used in most other membrane technologies. At the sub-micron pore rating, a syringe filter delivers sterilizing-grade retention at the point of use. Aluminum oxide's straight channels pull samples by capillary action while becoming visibly clear the moment it is wetted and meets dissolved proteins with mineral oxide chemistry throughout. The PP housing stays inert across common laboratory solvents and buffers in routine use and leaves no seam for sample to bypass the membrane. For workflows requiring validated sterile-grade performance, point-of-use retention meets it without a separate sterilization step.

Membrane Characteristics

• Anodized alumina matrix contains no monomers, plasticizers, adhesives, or wetting agents
• Rigid inorganic structure withstands high temperatures with minimal extractables
• Absolute pore-size rating holds consistent across every protocol
• Uniform capillary pore array gives high pore density without lateral crossover
• Naturally hydrophilic ceramic surface wets without pre-wetting in aqueous samples

Housing Characteristics

• Minimal ionic background from the polypropylene housing supports ion chromatography and trace-metal ICP-MS sample preparation.
• Polypropylene housing withstands rated backpressure from dense sample matrices without deformation.
• Stable across the full aqueous pH range in routine sample work
• The seal formed against the membrane blocks bypass at rated operating pressure

Sample clarification before injection is the cheapest insurance your chromatography system has. Pre-injection filtration protects the resolution your methods depend on across your chromatography methods. Ask how Whatman's track record as a proven brand supports standardizing your filtration 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

10mm

Filtration Area

0.78cm²

Holdup Volume

<20µl

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 10ml

Wettability

Hydrophilic

• Electron Microscopy Prep - Image retained particulates directly, using the electron-beam-stable ceramic surface for SEM and TEM sample preparation.
• Protein Aggregate Removal - Strips antibody and biologic formulations of aggregate species before SEC-MALS and DLS molecular weight characterization.
• HPLC Solvent Filtration - Filter chromatography mobile phases and solvents reliably, resisting degradation from aggressive organic reagents.
• Flow Cytometry Prep - Removes residual debris and aggregates from cell suspension buffers before immunophenotyping and bead-based multiplex assays.
• Low Background Specs - Prepare samples for spectrophotometry, ensuring extremely low optical background for the most sensitive analytical readings.
• Wastewater Solids Monitoring - Retains and recovers suspended solids and microbial contaminants from effluent samples for permit limit verification.