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Thumbnail Filmstrip of White PTFE/Red Silicone 11x1mm Vial Septa, 100/Pk Images
White PTFE/Red Silicone 11x1mm Vial Septa, 100/Pk - CV1878
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. Working in concert, consistent production quality eliminates the containment variables that compromise injection precision, supporting validated analytical performance at every step.
When your analytical methods require consistent sample containment from preparation through injection, every component in the closure system matters. 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
| Crimp Caps | 11mm Silver Aluminum Crimp Caps |
| Snap Caps | 11mm Polypropylene Snap Caps — Natural, Blue, Red |
| Vials | 11mm Crimp and Snap Clear and Amber Glass Vials (1.5mL, 0.3mL) |
| Note | 11mm septa fit both crimp and snap closure systems |
- Color
- White/ Red Septa
- Diameter
- 11mm
- Dimensions
- 11mm x 1mm
- Pack Count
- 100
- Septa Material
- Silicone/ PTFE
- Sterility
- Nonsterile
- Weight
- 0.04
- HPLC Mobile Phase Contact - PTFE sample-contact layer provides chemical inertness across acidic, basic, and organic mobile phase conditions.
- Temperature-Cycled Storage - Operating range of -60 to 200 degrees Celsius accommodates refrigerated storage through elevated-temperature methods.
- Light-Sensitive Samples - Pre-slit configurations reduce coring and particulate generation during needle penetration of amber vial closures.
- Low-Extractable Requirements - Inert PTFE contact surface minimizes septum-derived contaminant peaks that interfere with trace-level baselines.
- Volatile Compound Analysis - Leak-resistant seal prevents analyte evaporation losses during extended autosampler queue wait times before injection.
- Multiple Injection Sequences - Reseal-engineered construction maintains gas-tight closure integrity through repeated autosampler needle punctures.