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Thumbnail Filmstrip of Pre-Slit Red PTFE/White Silicone 11x1mm Vial Septa, 100/Pk Images
Pre-Slit Red PTFE/White Silicone 11x1mm Vial Septa, 100/Pk - CV1919
Rated for a temperature range of -60°C to 200°C, Tisch PTFE/Silicone chromatography septa maintain seal integrity across ambient and elevated-temperature analytical methods. Dimensional precision ensures uniform compression within the cap shell, preventing the uneven seal gaps that cause sample evaporation or atmospheric oxygen ingress. Together, reliable component compatibility across the chromatography closure system supports reproducible analytical results from sample preparation through final data acquisition.
Whether running routine QC sequences or method development campaigns, your confidence in sample integrity begins with the vial system on the autosampler tray. Precise dimensional cutting ensures uniform compression in the cap shell, giving you the consistent seal that prevents evaporation losses across extended autosampler queues. Invest in the injection-to-injection reproducibility your laboratory depends on by specifying consumables that match the quality standards of your analytical workflow.
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
- Red/ White Septa
- Diameter
- 11mm
- Dimensions
- 11mm x 1mm
- Pack Count
- 100
- Septa Material
- Silicone/ PTFE
- Sterility
- Nonsterile
- Weight
- 0.03
- Volatile Compound Analysis - Leak-resistant seal prevents analyte evaporation losses during extended autosampler queue wait times before injection.
- Low-Extractable Requirements - Inert PTFE contact surface minimizes septum-derived contaminant peaks that interfere with trace-level baselines.
- 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.
- Multiple Injection Sequences - Reseal-engineered construction maintains gas-tight closure integrity through repeated autosampler needle punctures.
- Light-Sensitive Samples - Pre-slit configurations reduce coring and particulate generation during needle penetration of amber vial closures.