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Thumbnail Filmstrip of White PTFE/Blue Silicone 20x3mm Vial Septa, 100/Pk Images
White PTFE/Blue Silicone 20x3mm Vial Septa, 100/Pk - CV1987
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. Flexible backing layer provides the mechanical compliance needed for clean needle penetration and self-sealing recovery, maintaining a gas-tight closure through repeated punctures. Reliable component compatibility across the chromatography closure system supports reproducible analytical results from sample preparation through final data acquisition.
Matching the right vial, cap, and septum configuration to your instrument and application ensures that sample containment never becomes a source of analytical uncertainty. Precise dimensional cutting ensures uniform compression in the cap shell, giving you the consistent seal that prevents evaporation losses across extended autosampler queues. Ensure your analytical results reflect true sample composition rather than containment variability by selecting vials, caps, and septa built to consistent specifications.
Compatible Chromatography Components
| Caps | 20mm Crimp Caps — Silver Aluminum and Blue Magnetic |
| Vials | 20mm Headspace Clear and Amber Glass Vials (10mL, 20mL) |
| Platform | Headspace GC Autosamplers |
- Color
- Blue/ White Septa
- Diameter
- 20mm
- Dimensions
- 20mm x 3mm
- Pack Count
- 100
- Septa Material
- Silicone/ PTFE
- Sterility
- Nonsterile
- Weight
- 0.29
- 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.
- Multiple Injection Sequences - Reseal-engineered construction maintains gas-tight closure integrity through repeated autosampler needle punctures.
- Volatile Compound Analysis - Leak-resistant seal prevents analyte evaporation losses during extended autosampler queue wait times before injection.
- Temperature-Cycled Storage - Operating range of -60 to 200 degrees Celsius accommodates refrigerated storage through elevated-temperature methods.
- HPLC Mobile Phase Contact - PTFE sample-contact layer provides chemical inertness across acidic, basic, and organic mobile phase conditions.