PTFE Syringe Filters w/ GD-4 Pre-Filter, 0.45um, 25mm, Nonsterile, 100/Pk
Tisch SKU: GD17036

Tisch Scientific PTFE Syringe Filters, 0.45 µm, 25 mm, 100/Pk - GD17036

Tisch Scientific works with established filtration manufacturers to ensure reliable quality and performance. At the point of sample preparation, a syringe filter removes particulates before the sample reaches the instrument. The PTFE membrane withstands aggressive organics that degrade other media while blocking aqueous ingress in vent applications and holds consistent absolute retention at the rated pore size. The PP housing sustains efficient flow on viscous samples and stays inert across common laboratory solvents. When method reproducibility rests on consistent sample prep, syringe filtration holds that standard injection after injection.

Technical Specifications

• Hydrophobic membrane repels water for gas, vent, and solvent filtration
• Low extractables keep the chromatographic background clean
• Stable across a wide operating temperature range for demanding methods
• Chemically inert against aggressive solvents, strong acids, and alkalis
• Filters aggressive organic solvents without swelling or breakdown

Housing Specifications

• Stable across the full aqueous pH range in routine sample work
• Rigid polypropylene body holds its shape under manual filtration pressure
• Low extractable contribution protects sensitive downstream analyses
• Thermal-bonded construction keeps adhesives out of the fluid path

Handling the harsh solvents your methods demand calls for a filter that holds up to the chemistry, pass after pass. Solvent-stream filtration handles the solvents and reagents your methods rely on so your filter holds its integrity through the run. 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)

7.25(absolute ethyl alcohol ）

Burst Pressure (psi)

87psi.

Connection Type

Luer-Lok/Luer Slip

Construction

PP

Diameter

25mm

Filtration Area

4.08cm²

Flow Rate

35ml

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)

0.45

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
• HPLC Sample Preparation - Removes particulates from samples in organic solvents, protecting performance and analytical accuracy
• Strong Acid Filtration - Safely processes concentrated HCl, H₂SO₄, and HNO₃, maintaining membrane integrity for complex applications
• Protein Precipitation Cleanup - Clarifies samples following organic solvent or acid precipitation protocols in bioanalytical workflows
• Air and Gas Venting - Hydrophobic properties allow gas passage while blocking liquid intrusion in fermenters and bioreactor systems
• Pharmaceutical Dissolution Testing - Filters aggressive solvent samples to protect HPLC columns and ensure accurate, particle-free results