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Thumbnail Filmstrip of Natural PTFE/Natural Silicone 22x3mm Vial Septa, 100/Pk Images
Natural PTFE/Natural Silicone 22x3mm Vial Septa, 100/Pk - CV1983
Engineered with a chemically inert PTFE contact layer, Tisch CV1983 vial septa prevent sample interaction with the seal material during storage and injection. PTFE sample-contact surface eliminates extractable contamination from the seal, preserving chromatographic baseline integrity across extended autosampler queue sequences. Consequently, 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. 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 | 24mm Screw Caps — White, Black, Red (Polypropylene, Open and Closed Top) |
| Vials | 24mm EPA Clear and Amber Glass Vials (20mL, 30mL, 40mL, 60mL) |
| Thread | 24-400 / ND24 |
- Color
- Natural/ Natural Septa
- Diameter
- 22mm
- Dimensions
- 22mm x 3mm
- Pack Count
- 100
- Septa Material
- Silicone/ PTFE
- Sterility
- Nonsterile
- Weight
- 0.32
- 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.
- 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.
- 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.