GD/X 25mm Sterile Syringe Filter, CA Filteration Medium, 0.45um (50pk)
Whatman SKU: 6901-2504

Whatman GD/X Cellulose Acetate (CA) Syringe Filters, 0.45 µm, 25 mm, 50/Pk - 6901-2504

Whatman applies the same process controls across its filtration portfolio, verifying rated performance at the production lot level. Syringe filters give the analyst a single-use device for clarifying samples right at the bench. Low-binding cellulose acetate preserves dilute proteins in the filtrate while drawing aqueous samples through readily and stays smooth with low extractable background. Polypropylene construction holds extractable contribution low for sensitive analyses and stays inert across common laboratory solvents. When chromatographic methods demand particle-free injections, point-of-use syringe filtration clarifies the sample before it reaches the column.

Technical Specifications

• Stable with aqueous solutions, buffers, and alcohols across pH 4 to 8
• Smooth surface with low extractables and a uniform pore structure
• Naturally hydrophilic surface wets readily with aqueous samples
• Absolute pore-size rating gives consistent retention across protocols
• Very low protein binding supports high recovery of dilute samples

Housing Specifications

• Reliable housing-to-membrane seal prevents bypass at rated pressure
• Tough polypropylene body tolerates repeated handling at the bench
• Medical-grade polypropylene with broad chemical compatibility
• Low extractable contribution protects sensitive downstream analyses

Upstream clarification pays for itself by keeping your columns clear and your analytical day on schedule. Pre-injection filtration protects the resolution your methods depend on by clearing particulates ahead of the column and frits. Send your application details to our technical service team and request a filtration product recommendation.

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

Bubble Point (psi)

2.0 bar (29 psi)

Burst Pressure (psi)

75psi

Connection Type

Luer-Lok/ Luer Slip

Construction

Polypropylene

Diameter

25mm

Filtration Area

4.6cm²

Flow Rate

29

Holdup Volume

1.4ml

Material

Cellulose Acetate

Maximum Operating Pressure

75psi

Maximum Operating Temperature (°C)

121°C

Pack Count

50

Pore Size (µm)

0.45

Prefilter (Yes/No)

Yes

Prefilter Material

Glass Microfiber (GMF)

Sterility

Nonsterile

Sterilization

Autoclavable 121°C

Volume Throughput (ml)

Up to 100ml

Wettability

Hydrophilic

• Sample Clarification - Protecting analytical instruments via rapid removal of particulates to maintain high throughput in busy laboratories
• Research & Development - Supports protocols that need to remove particulates, providing the ability to protect analytical instruments
• Biological Fluid Analysis - Protects sensitive downstream instruments from removing particulates that can cause system failure
• General Laboratory Filtration - Increases workflow efficiency by protecting analytical instruments without sacrificing flow rates
• Analytical Sample Prep - Optimized to ensure data integrity by effectively removing particulates before instrumental analysis
• Quality Control Testing - Optimized for delivering reproducible results by removing particulates in standard pharmaceutical protocols