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Thumbnail Filmstrip of Gray PTFE/Red Butyl 17.5x1.6mm Vial Septa, 100/Pk Images
Gray PTFE/Red Butyl 17.5x1.6mm Vial Septa, 100/Pk - CV2065
PTFE-lined chromatography septa from Tisch provide the chemical inertness and reseal integrity required for reliable autosampler injection across multiple needle punctures. Dimensional precision ensures uniform compression within the cap shell, preventing the uneven seal gaps that cause sample evaporation or atmospheric oxygen ingress. As designed, 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.
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. 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
| Caps | 18mm Magnetic Precision Screw Caps (Aluminum) |
| Vials | 18mm Headspace Clear and Amber Glass Vials (10mL, 20mL, Round Bottom) |
| Platform | Headspace GC Autosamplers |
| Thread | 18mm Precision Thread / ND18 |
- Color
- Gray/ Red Septa
- Diameter
- 17.5mm
- Dimensions
- 17.5mm x 1.6mm
- Pack Count
- 100
- Septa Material
- Buytl/ PTFE
- Sterility
- Nonsterile
- Weight
- 0.13
- 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.
- 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.