Tisch
PES Syringe Filters, 0.22 um, 25mm, for Ion Chromagraphy, Nonsterile, 100/Pk SKU: SF18320

Polyethersulfone (PES) Syringe Filters - SF18320

Featuring specialized polyethersulfone membrane technology engineered for ultra-low extractables in ion chromatography applications. A 0.22µm absolute pore configuration delivers sterile-grade filtration while maintaining critical ionic purity essential for trace-level analytical measurements. Tisch Scientific combines hydrophilic PES membranes with optimized construction materials to eliminate ionic contamination that compromises chromatographic baselines and detector sensitivity.

Key Polyethersulfone (PES) Membrane Characteristics

• Naturally hydrophilic membrane ensures immediate wetting without surfactants that interfere with IC detection
• Ultra-low extractables profile prevents introduction of ionic contaminants in ppb-level analyses
• Superior chemical resistance withstands mobile phase buffers and pH extremes from 1-14
• 0.22µm absolute pore rating guarantees complete bacterial and microorganism removal
• Autoclavable construction allows sterilization at 121°C for validated analytical protocols

Key Construction Characteristics

• Ion-chromatography certified housing eliminates metal ion leaching and anionic extractables
• Dual Luer-Lok/Luer Slip connections provide universal compatibility with standard syringes
• Optimized 25mm diameter balances flow rate with filtration efficiency for routine IC samples
• 100µl holdup volume minimizes loss of precious calibration standards and reference materials

SF18320 syringe filters achieve consistent 30ml/min flow rates through a 4.08cm² active filtration area, optimizing your sample throughput while maintaining ionic purity essential for accurate quantitation. Specialized low-extractables construction eliminates background contamination that degrades chromatographic resolution and sensitivity at trace levels. Autoclave compatibility at 121°C transforms nonsterile units into validated sterile filters, supporting your most demanding ion chromatography protocols requiring both bacterial removal and certified extractables performance.

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

Bubble Point (psi)

43.51psi

Burst Pressure (psi)

87psi

Connection Type

Luer-Lok/ Luer Slip

Diameter

25mm

Filtration Area

4.08cm²

Flow Rate

30ml

Holdup Volume

100μL

Material

Polyethersulfone (PES)

Maximum Operating Pressure

87psi

Maximum Operating Temperature (°C)

60°C

Membrane Thickness (µm)

100-160μm

Pack Count

100

Pore Size (µm)

0.22

Prefilter (Yes/No)

No

Prefilter Material

/

Sterility

Nonsterile

Sterilization

Autoclave 121°C for 30min/ gamma 25kGy

Volume Throughput (ml)

50ml

Wetability

Hydrophilic

• Ion chromatography - Ultra-pure filtration prevents column contamination and baseline interference
• Sterile filtration - Complete bacterial removal from analytical standards and mobile phase buffers
• Trace anion analysis - Sample preparation for EPA methods 300.0, 300.1 requiring sub-ppb detection
• Cation determination - Filtration of samples for alkali, alkaline earth, and transition metal analysis
• Pharmaceutical testing - USP ion chromatography sample prep for impurity and excipient analysis
• Water quality monitoring - Processing ultrapure water, drinking water, and wastewater for ionic species