PTFE Syringe Filters w/ GD-4 Pre-Filter, 0.22 um, 25mm, Nonsterile, 100/Pk
Tisch SKU: GD17035

Tisch Scientific PTFE Syringe Filters, 0.22 µm, 25 mm, 100/Pk - GD17035

Tisch Scientific works with established filtration manufacturers to ensure reliable quality and performance. Sample preparation for chromatography often ends with a syringe filter on the path to the vial. Hydrophobic PTFE repels water while passing gases and solvents freely and provides bacterial retention in gas and vent streams. The polypropylene housing resists aqueous acids, bases, and alcohols in routine use while preventing sample bypass under rated operating pressure and keeps the fluid path low in extractable contamination. Where analytical results depend on clean samples, syringe filtration removes particulates at the moment of preparation.

Technical Specifications

• Low extractables keep the chromatographic background clean
• Sterilizing-grade gas and vent filtration at sub-micron pore sizes
• Chemically inert against aggressive solvents, strong acids, and alkalis
• Filters aggressive organic solvents without swelling or breakdown
• Stable across a wide operating temperature range for demanding methods

Housing Specifications

• Optimized internal geometry minimizes backpressure in service
• Tough polypropylene body tolerates repeated handling at the bench
• Resists stress cracking from aqueous salt and buffer solutions
• Stable across the full aqueous pH range in routine sample work

Handling the harsh solvents your methods demand calls for a filter that holds up to the chemistry, pass after pass. Reliable solvent prefiltration clears particulates from your organic samples from reaction mixtures and crude extracts through final analysis. Connect with our customer support technicians for chemical compatibility guidance and the right filtration product for your workflow.

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

Bubble Point (psi)

17.4psi

Burst Pressure (psi)

87psi.

Connection Type

Luer-Lok/Luer Slip

Construction

PP

Diameter

25mm

Filtration Area

4.08cm²

Flow Rate

18ml

Holdup Volume

100μL

Material

Polytetrafluoroethylene (PTFE)

Maximum Operating Pressure

87psi

Maximum Operating Temperature (°C)

60°C

Membrane Thickness (µm)

80-140μm

Pack Count

100

Pore Size (µm)

0.22

Sterility

NonSterile

Sterilization

Autoclave 121°C for 30min/ Gamma 25kGy

Volume Throughput (ml)

100ml

Weight

0.70

Wettability

Hydrophobic

• Aggressive Solvent Filtration - Handles DMF, DMSO, THF, and chloroform where other membranes degrade, protecting analytical equipment downstream
• Sterile Filtration - Removes bacteria from non-aqueous pharmaceutical solutions and organic reagents requiring sterile-grade processing
• HPLC Sample Preparation - Protects chromatography columns from particulates in organic mobile phases while maintaining chemical compatibility
• Air and Gas Venting - Hydrophobic membrane permits gas passage while blocking aqueous contamination in laboratory equipment and vessels
• Strong Acid Handling - Filters concentrated HCl, H2SO4, and HNO3 without membrane degradation in chemical synthesis and analytical workflows
• Protein Precipitation Cleanup - Clarifies samples after TCA, acetonitrile, or methanol precipitation in proteomics sample preparation