PTFE Syringe Filter, 0.45µm, 17mm, Glass Prefilter, Hydrophobic, Nonsterile, 100/Pk
LabExact SKU: LE-IWT-ES10321

LabExact PTFE Syringe Filters, 0.45 µm, 17 mm, 100/Pk - LE-IWT-ES10321

Sample preparation for chromatography often ends with a syringe filter on the path to the vial. The PTFE membrane withstands aggressive organics that degrade other media while maintaining absolute retention consistency at every rated size and suits gas, vent, and solvent-stream filtration. Polypropylene construction resists chemical degradation from routine sample matrices while holding its seal true run after run and routes flow to minimize backpressure in service. Where bench-scale prep must move quickly from one sample to the next, each sample starts as clean as the last without a carry-over risk or a cleaning step between uses.

Membrane Characteristics

• Water contact angle near 120 degrees marks strong hydrophobicity
• Ionic and metallic extractable levels stay very low
• Solvent tolerance includes full-strength tetrahydrofuran and chlorinated solvents such as dichloromethane
• Membrane integrity holds across repeated autoclave sterilization cycles at 121°C to 134°C
• Insolubility in all known organic solvents avoids swelling and pore distortion

Housing Characteristics

• Minimal extractable release from the housing supports sensitive analytical work downstream
• Low moisture absorption keeps the housing dimensionally stable through humid storage and shipping
• Polypropylene housing withstands rated backpressure from dense sample matrices without deformation
• Inert polyolefin wall contributes minimal sample adsorption to the filtrate

Particulates left in your organic solvents and reagents carry downstream into the step that depends on a clean feed. Solvent-stream filtration handles the solvents and reagents your methods rely on so your filter holds its integrity through the run. Standardize your filtration purchases across every method with volume pricing and documentation from the Tisch Scientific team.

Sterilization Guidance

The housing supports customer autoclave sterilization at 121°C for 30 minutes.

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

Diameter

17mm

Material

Polytetrafluoroethylene (PTFE)

Pack Count

100

Pore Size (µm)

0.45

Sterility

Nonsterile

Weight

0.168

Wettability

Hydrophobic

• Spirits Congener Analysis - Clarifies distilled spirits samples ahead of GC analysis, protecting columns from residue during congener profiling.
• Agrochemical Formulation QC - Clarifies technical pesticide concentrates in organic solvent ahead of HPLC potency and impurity analysis.
• Extractables Testing - Clarifies packaging material organic solvent extracts ahead of LC-MS analysis, keeping background low for leachable detection.
• Polymer GPC Prep - Clarifies polymer solutions in THF ahead of gel permeation chromatography, protecting columns from particulates.
• Air Monitoring - Ensures precise capture of airborne particulates for environmental analysis in demanding atmospheric monitoring conditions.
• Mobile Phase Prep - Extends column life by consistently removing particulates from organic HPLC mobile phases before every injection.