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

Polytetrafluoroethylene (PTFE) Syringe Filters - GD17035

When you're filtering aggressive solvents and corrosive reagents, you need the broadest chemical resistance available. These 0.22µm PTFE filters with integrated GD-4 glass fiber prefilters handle everything from strong acids to challenging organics like DMF and chloroform. The hydrophobic membrane removes bacteria from non-aqueous solutions while the glass fiber layer captures large particles upstream, extending membrane life in high-particulate samples.

Key Polytetrafluoroethylene (PTFE) Membrane Characteristics

• Hydrophobic membrane requires pre-wetting with alcohol for aqueous solutions
• Universal chemical resistance withstands all organic solvents, acids, and bases
• Exceptional thermal stability maintains integrity at 60°C continuous operation
• Autoclavable construction enables sterilization at 121°C for 30 minutes when required

Key Construction Characteristics

• GD-4 glass fiber prefilter extends membrane life by capturing larger particulates upstream
• Dual Luer-Lok/Luer Slip connectivity accommodates all standard syringe configurations
• Polypropylene housing withstands 87psi burst pressure for secure high-pressure operations
• 100µl holdup volume minimizes sample loss when filtering valuable or limited reagents

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

Wetability

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