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Thumbnail Filmstrip of Red PTFE/White Silicone/Red PTFE 13x1.5mm Vial Septa, 100/Pk Images
Red PTFE/White Silicone/Red PTFE 13x1.5mm Vial Septa, 100/Pk - CV1938
PTFE-lined chromatography septa from Tisch provide the chemical inertness and reseal integrity required for reliable autosampler injection across multiple needle punctures. Flexible backing layer provides the mechanical compliance needed for clean needle penetration and self-sealing recovery, maintaining a gas-tight closure through repeated punctures. In practice, stringent manufacturing tolerances across vials, caps, and septa ensure that every component in the sample containment chain performs to the specifications modern analytical methods demand.
Whether running routine QC sequences or method development campaigns, your confidence in sample integrity begins with the vial system on the autosampler tray. PTFE chemical inertness at the sample contact surface keeps your chromatographic baseline clean, while the flexible backing delivers reliable reseal performance through repeated injections. Standardize your sample containment system on components engineered for the dimensional precision and chemical inertness your chromatographic methods demand.
Compatible Chromatography Components
| Caps | 13mm Screw Caps — Black (Polypropylene, Open and Closed Top) |
| Vials | 13mm Screw Thread Clear and Amber Glass Vials (4mL) |
| Thread | 13-425 / ND13 |
- Cap Size
- 13mm
- Color
- Red/ White Septa
- Diameter
- 13mm
- Dimensions
- 13mm x 1.5mm
- Pack Count
- 100
- Septa Material
- Silicone/ PTFE
- Sterility
- Nonsterile
- Weight
- 0.06
- Multiple Injection Sequences - Reseal-engineered construction maintains gas-tight closure integrity through repeated autosampler needle punctures.
- Temperature-Cycled Storage - Operating range of -60 to 200 degrees Celsius accommodates refrigerated storage through elevated-temperature methods.
- Volatile Compound Analysis - Leak-resistant seal prevents analyte evaporation losses during extended autosampler queue wait times before injection.
- HPLC Mobile Phase Contact - PTFE sample-contact layer provides chemical inertness across acidic, basic, and organic mobile phase conditions.
- Low-Extractable Requirements - Inert PTFE contact surface minimizes septum-derived contaminant peaks that interfere with trace-level baselines.
- Light-Sensitive Samples - Pre-slit configurations reduce coring and particulate generation during needle penetration of amber vial closures.