Whatman
Pura Disc 4 mm PVDF Syringe Filters, 0.45um, 100/Pk SKU: 6779-0404

Polyvinylidene Difluoride (PVDF) Syringe Filters, 0.45µm, 4mm - 6779-0404

In high-throughput analytical laboratories, the Polyvinylidene Difluoride (PVDF) Whatman Puradisc, 4mm, Polyvinylidene Difluoride Syringe Filter, 0.45µm 100/pk series establishes a standard for effective particulate removal and sample clarification. Driving this clarification performance is a hydrophobic Polyvinylidene Difluoride (PVDF) membrane featuring a verified 0.45 pore structure that captures target particulates while minimizing holdup volume. Complementing the membrane's purity, the housing's thermal bonding eliminates the need for adhesives, removing a common source of extractable contamination. The result is a filtration solution manufactured in an ISO-certified facility that minimizes distinct interference, providing clean baselines for publication-quality data.

Key Polyvinylidene Difluoride (PVDF) Membrane Characteristics

• Polyvinylidene Difluoride (PVDF) membrane with hydrophobic or hydrophilic affinity
• Ultra-Low Protein Binding characteristics
• Excellent resistance to HPLC solvents and oxidation
• High flow rates for clarified solutions
• Verified 0.45 retention rating for clarification

Key Housing Characteristics

• High-purity Polypropylene encapsulation housing
• Luer-Lok/ Luer Slip for secure fitting
• 0.2cm² effective filtration area
• <10µl holdup volume to minimize sample loss

When you integrate these filters into your daily standard operating procedures, you are choosing a workflow that prioritizes efficiency without compromising results. You invest significant resources into your samples; safeguarding them with a proven filtration barrier is a cost-effective insurance policy for your lab. Elevate the quality of your analytical data today by standardizing on a filtration product built to meet the exact specifications of your applications.

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

Bubble Point (psi)

1.2 bar (17 psi)

Burst Pressure (psi)

75psi

Connection Type

Luer-Lok/ Luer Slip

Construction

Polypropylene

Diameter

4mm

Filtration Area

0.2cm²

Holdup Volume

<10µl

Material

Polyvinylidene Difluoride (PVDF)

Maximum Operating Pressure

75psi

Maximum Operating Temperature (°C)

100°C

Pack Count

100

Pore Size (µm)

0.45

Prefilter (Yes/No)

No

Sterility

Nonsterile

Sterilization

Autoclavable 121°C

Volume Throughput (ml)

Up to 2ml

Wetability

Hydrophobic

• HPLC Sample Prep - PVDF provides a great balance of chemical compatibility and low background noise for sensitive UV detection
• Clarification of Biologicals - Perfect for removing particulates from biological fluids without removing the target biomolecules
• Western Blotting - Optimized for use in preparing samples for downstream blotting techniques where purity is paramount
• Protein Analysis - Ultra-low protein binding ensures that your expensive protein samples are not lost to the filter matrix
• Quality Control Testing - Optimized for delivering reproducible results by removing particulates in standard pharmaceutical protocols
• Particulate Removal - Designed for removing particulates, this filter aids in protecting analytical instruments across diverse sample types