Whatman
Pura Disc 25mm PVDF Syringe Filters, 0.45um, 1000 Pk SKU: 6749-2504

Polyvinylidene Difluoride (PVDF) Syringe Filters, 0.45µm, 25mm - 6749-2504

For researchers requiring consistent baselines in HPLC and dissolution testing, the Polyvinylidene Difluoride (PVDF) Whatman Puradisc, 25mm, Polyvinylidene Difluoride Syringe Filter, 0.45µm 1000/pk offers a robust solution for extending instrument life. 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. To guarantee structural reliability, each unit undergoes strict quality control to ensure the housing and membrane seal withstand standard operating pressures without leakage. Consequently, by reducing the risk of downstream contamination, these filters serve as a critical safeguard for the integrity of your experimental results.

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
• 4.2cm² effective filtration area
• <100µl holdup volume to minimize sample loss

By selecting a filter that matches the exact chemical nature of your samples, you ensure that your workflow remains uninterrupted by membrane failures. Trust in the consistent performance of your filtration step to remove the variables that often lead to costly re-runs and ambiguous data. Secure your research outcomes by partnering with a filtration solution that understands your need for speed, accuracy, and reproducibility.

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

25mm

Filtration Area

4.2cm²

Holdup Volume

<100µl

Material

Polyvinylidene Difluoride (PVDF)

Maximum Operating Pressure

75psi

Maximum Operating Temperature (°C)

121°C

Pack Count

1000

Pore Size (µm)

0.45

Prefilter (Yes/No)

No

Sterility

Nonsterile

Sterilization

Autoclavable 121°C

Volume Throughput (ml)

Up to 100ml

Wetability

Hydrophobic

• Western Blotting - Optimized for use in preparing samples for downstream blotting techniques where purity is paramount
• 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
• Protein Analysis - Ultra-low protein binding ensures that your expensive protein samples are not lost to the filter matrix
• Biological Fluid Analysis - Protects sensitive downstream instruments from removing particulates that can cause system failure
• Quality Control Testing - Optimized for delivering reproducible results by removing particulates in standard pharmaceutical protocols