ConductScience Syringe Filters 0.22um, PVDF, Sterile (Pack of 10)
$58.00 per unit | 10 units per pack Bulk pricing: Pack of 10 at $580.00 ($58.00 per unit)
| Automation Level | manual |
Sterile syringe filters designed for critical sample preparation applications requiring removal of particles and microorganisms. These 0.22 µm PVDF membrane filters provide hydrophilic filtration characteristics with low protein binding, making them suitable for aqueous biological solutions and analytical samples.
The 33mm diameter housing accommodates standard luer-lock syringes for manual filtration operations. Supplied sterile for applications where microbial contamination must be minimized during sample processing.
How It Works
Filtration occurs through size exclusion as samples pass through the 0.22 µm pore structure of the PVDF membrane. Particles larger than the pore size are retained on the membrane surface while the filtrate passes through. The hydrophilic nature of PVDF allows efficient wetting and flow of aqueous solutions.
The low protein binding characteristics of PVDF minimize sample loss through adsorption, making it suitable for protein-containing solutions. The membrane structure provides consistent pore size distribution for reliable particle retention and flow rates during manual syringe-driven filtration.
Features & Benefits
Automation Level
- manual
Research Domain
- Analytical Chemistry
- Cell Biology
- Clinical Diagnostics
- Environmental Monitoring
- Microbiology
- Pharmaceutical QC
Weight
- 0.22 kg
Dimensions
- L: 8.3 mm
- W: 6.9 mm
- H: 5.5 mm
Comparison Guide
| Feature | This Product | Typical Alternative | Advantage |
|---|---|---|---|
| Membrane Material | PVDF with hydrophilic properties | Cellulose acetate or nylon membranes with varying hydrophilic/hydrophobic characteristics | PVDF combines low protein binding with broad chemical compatibility for diverse sample types |
| Sterile Supply | Individual sterile packaging | Some filters require user sterilization or non-sterile supply | Ready-to-use sterile filters eliminate additional sterilization steps and contamination risk |
| Pore Size | 0.22 µm for bacterial removal | Range from 0.1 µm to 0.45 µm depending on application requirements | Standard 0.22 µm size provides bacterial removal while maintaining good flow rates |
| Housing Size | 33mm diameter | Smaller 13mm or 25mm diameters in economy filters | Larger membrane area provides higher throughput and reduced clogging for sample volumes |
These sterile PVDF syringe filters provide hydrophilic filtration characteristics with low protein binding in a 33mm format suitable for routine laboratory sample preparation and sterilization applications.
Practical Tips
Pre-wet the filter with a small volume of sample or compatible solvent before collecting filtrate to ensure complete membrane saturation.
Why: Proper wetting eliminates air pockets that could cause inconsistent flow or sample loss
Apply steady, moderate pressure rather than rapid or excessive force during filtration to maintain membrane integrity.
Why: Controlled pressure prevents membrane damage and ensures consistent particle retention
Use appropriate personal protective equipment when filtering biological samples or hazardous chemicals.
Why: Prevents exposure to potentially harmful sample components during manual filtration operations
Discard the first few drops of filtrate if sample recovery is critical to avoid dilution from membrane hold-up volume.
Why: Initial filtrate may be diluted by residual wetting solution or membrane manufacturing residues
If flow rate decreases significantly during filtration, consider pre-filtering through a larger pore size to remove bulk particulates.
Why: Pre-filtration prevents membrane clogging and maintains consistent flow throughout the filtration process
Replace filters immediately when flow rate drops below acceptable levels or if any sign of membrane damage is observed.
Why: Compromised filters may allow particle passage or introduce contaminants into the filtrate
Select syringe volume appropriately to minimize the number of refills needed for your sample volume.
Why: Reduces handling steps and potential contamination while improving filtration efficiency
Setup Guide
What’s in the Box
- Sterile syringe filters (quantity per package as specified)
- Individual sterile packaging
Warranty
ConductScience provides standard manufacturer warranty coverage for consumable products, with technical support available for filtration application guidance.
Compliance
What is the maximum pressure rating for these filters?
Consult the product datasheet for specific pressure specifications. Typical syringe filters are designed for manual syringe pressure application.
Can these filters be used with organic solvents?
These filters are designed for aqueous solutions. PVDF has good chemical compatibility, but consult the chemical compatibility chart for specific solvents.
What is the expected flow rate for water?
Flow rate depends on applied pressure and sample viscosity. Consult product specifications for flow rate data under standardized conditions.
How should unused filters be stored?
Store in original sterile packaging at room temperature in a dry environment. Avoid temperature extremes that could compromise package integrity.
What is the protein binding capacity?
PVDF membranes have inherently low protein binding. Consult manufacturer data for specific binding values with target proteins if critical to your application.
Are these filters validated for specific particle retention?
The 0.22 µm rating indicates nominal pore size for particle retention. Consult validation data sheets for specific retention efficiency testing results.
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