Pura Disc 13mm H-PTFE Syringe Filters 0.2um, Hydrophilic, 100/Pk
Whatman SKU: 6772-1302

Whatman Puradisc Water-Wettable PTFE Syringe Filters, 0.2 µm, 13 mm, 100/Pk - 6772-1302

Whatman applies over a century of filtration media expertise, manufacturing under the quality standards that established its products as global laboratory references. Across analytical workflows, the syringe filter is where particulates leave the sample stream. The hydrophilic PTFE membrane achieves bacterial retention at the rated pore size while handling both aqueous buffers and organic solvents and accepts aqueous samples without pre-wetting. Polypropylene construction maintains housing integrity through the filtration run while keeping the fluid path low in extractable contamination and stays inert across common laboratory solvents. Where analytical results depend on clean samples, syringe filtration removes particulates at the moment of preparation.

Technical Specifications

• Chemically inert to aggressive organic solvents, strong acids, and alkalis
• Low protein binding preserves dilute analytes for maximum recovery
• Sterile-grade retention at sub-micron pore sizes
• Universal compatibility across aqueous buffers and organic solvents
• Absolute pore-size rating gives consistent retention across protocols

Housing Specifications

• Tough polypropylene body tolerates repeated handling at the bench
• Optimized internal geometry minimizes backpressure in service
• Low extractable contribution protects sensitive downstream analyses
• Stable across the full aqueous pH range in routine sample work

Reproducible separations start with samples that reach the column free of particulates. Pre-injection filtration protects the resolution your methods depend on so your retention times and peak shapes stay consistent. Review our Chemical Compatibility Chart, or ask technical service to confirm chemical compatibility for your specific application.

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

Bubble Point (psi)

1.0 bar (15 psi) [IPA]

Connection Type

Luer-Lok/ Luer Slip

Diameter

13mm

Filtration Area

1.33cm²

Holdup Volume

< 25µl (after air purge)

Material

Hydrophilic Polytetrafluoroethylene (PTFE)

Pack Count

100

Pore Size (µm)

0.2

Prefilter (Yes/No)

No

Sterility

Nonsterile

Volume Throughput (ml)

Up to 10ml

Wettability

Hydrophobic

• Aggressive Solvent Filtration - PTFE is chemically inert, making it the only choice for filtering strong acids and bases
• Organic Mobile Phases - Ideal for filtering 100% organic solvents in HPLC and GC workflows without any membrane degradation
• Aerosol Sampling - The hydrophobic nature of PTFE allows for gas venting and air monitoring applications in harsh environments
• Cryogenic Fluids - Remains functional and integral even at extreme temperatures, protecting sensitive equipment from damage
• 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