GD/X 13mm Syringe Filter, PTFE Filteration Medium, 0.45um (150 pcs)
Whatman SKU: 6874-1304

Whatman GD/X PTFE Syringe Filters, 0.45 µm, 13 mm, 150/Pk - 6874-1304

Whatman ties GD/X prefiltration performance to one closely held fiber-grade standard applied at every production run, keeping results repeatable from one manufacturing lot to the next. A syringe filter dispenses filtrate directly into an autosampler vial, without the intermediate collection vessel a bulk vacuum filtration setup typically needs. PTFE stays chemically inert against aggressive solvents, strong acids, and alkalis in service and clarifies solvent streams at the rated pore size. Polypropylene construction resists chemical degradation from routine sample matrices while maintaining a low-dead-volume internal flow path and leaves no seam for sample to bypass the membrane. When chromatographic methods demand particle-free injections, point-of-use syringe filtration clarifies the sample before it reaches the column.

Technical Specifications

• PTFE's fully fluorinated carbon backbone resists degradation from prolonged ultraviolet and ozone exposure, sustaining membrane integrity through extended outdoor and ambient air sampling deployments.
• PTFE tolerates full-strength tetrahydrofuran and chlorinated solvents such as dichloromethane
• PTFE resists attack from strong oxidizing agents such as nascent chlorine and concentrated sodium hydroxide, supporting filtration of hypochlorite-based disinfectant and cleaning validation samples.
• Low extractables keep the chromatographic background clean
• PTFE retains flexibility and mechanical toughness from cryogenic temperatures near -268°C up to a continuous service limit of 260°C, spanning frozen sample storage through elevated-temperature method work.

Housing Specifications

• The seal formed against the membrane blocks bypass at rated operating pressure
• Polypropylene density near 0.90 g/cm3 keeps housing weight low relative to denser engineering plastics
• Plasticizer-free polyolefin construction keeps the fluid path clean
• Low moisture absorption keeps the housing dimensionally stable through humid storage and shipping

Removing particulates from organic solvents and reagents before they move downstream keeps contamination out of your results. Solvent-stream filtration handles the solvents and reagents your methods rely on so your filter holds its integrity through the run. Bulk pricing kicks in on larger filtration orders, so ask the Tisch Scientific team for a quote.

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

0.5ml

Material

Polytetrafluoroethylene (PTFE)

Maximum Operating Pressure

75psi

Maximum Operating Temperature (°C)

121°C

Pack Count

150

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 10ml

Wettability

Hydrophobic

• Fuel Analysis Prep - Clarifies gasoline and other petroleum samples ahead of gas chromatography, protecting injector ports from residue buildup.
• Spirits Congener Analysis - Clarifies distilled spirits samples ahead of GC analysis, protecting columns from residue during congener profiling.
• Battery Electrolyte Prep - Clarifies lithium-ion battery electrolyte in carbonate solvents ahead of GC-MS purity and impurity analysis.
• Pump Protection - Acts as a hydrophobic barrier that protects vacuum pumps from corrosive moisture and particulate damage.
• Extractables Testing - Clarifies packaging material organic solvent extracts ahead of LC-MS analysis, keeping background low for leachable detection.
• Cryogenic Fluids - Delivers consistent performance across extreme temperature ranges, filtering cryogenic liquids with dependable, reliable results.