Pura Disc 13mm H-PTFE Syringe Filters 0.45um, Hydrophilic, 2000 Pk
Whatman SKU: 6774-1304

Whatman Puradisc Water-Wettable PTFE Syringe Filters, 0.45 µm, 13 mm, 2000/Pk - 6774-1304

Whatman's expertise in cellulose, glass fiber, and polymeric membrane production guides material selection and quality control. Syringe filters give the analyst a single-use device for clarifying samples right at the bench. The hydrophilic PTFE membrane clarifies particulates at the rated pore size and withstands aggressive organic solvents without swelling. The polypropylene housing contributes minimal extractables to the filtrate while staying inert across common laboratory solvents and maintains housing integrity through the filtration run. When sterile or particle-free preparation matters at the bench, the syringe filter delivers it with minimal added handling.

Technical Specifications

• Universal compatibility across aqueous buffers and organic solvents
• Water-wettable surface wets directly with both aqueous and organic samples
• Absolute pore-size rating gives consistent retention across protocols
• Chemically inert to aggressive organic solvents, strong acids, and alkalis
• Low protein binding preserves dilute analytes for maximum recovery

Housing Specifications

• Resists stress cracking from aqueous salt and buffer solutions
• Resists aqueous acids, bases, and alcohols in routine sample prep
• Plasticizer-free polyolefin construction keeps the fluid path clean
• Optimized internal geometry minimizes backpressure in service

Filtering every buffer before loading keeps your instrument running clean and uninterrupted. 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)

0.6 bar (9 psi) [IPA]

Burst Pressure (psi)

75psi

Connection Type

Luer-Lok/ Luer Slip

Construction

Polypropylene

Diameter

13mm

Filtration Area

1.3cm²

Holdup Volume

<25µl

Material

Hydrophilic Polytetrafluoroethylene (PTFE)

Maximum Operating Pressure

75psi

Maximum Operating Temperature (°C)

121°C

Pack Count

2000

Pore Size (µm)

0.45

Prefilter (Yes/No)

No

Sterility

Nonsterile

Sterilization

Autoclavable 121°C

Volume Throughput (ml)

Up to 10ml

Wettability

Hydrophobic

• 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
• Aggressive Solvent Filtration - PTFE is chemically inert, making it the only choice for filtering strong acids and bases
• Particulate Removal - Designed for removing particulates, this filter aids in protecting analytical instruments across diverse sample types
• General Laboratory Filtration - Increases workflow efficiency by protecting analytical instruments without sacrificing flow rates