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Thumbnail Filmstrip of Pre-Slit Red PTFE/White Silicone 8x2mm Vial Septa, 100/Pk Images
Pre-Slit Red PTFE/White Silicone 8x2mm Vial Septa, 100/Pk - CV1843
Engineered with a chemically inert PTFE contact layer, Tisch CV1843 vial septa prevent sample interaction with the seal material during storage and injection. Flexible backing layer provides the mechanical compliance needed for clean needle penetration and self-sealing recovery, maintaining a gas-tight closure through repeated punctures. 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. 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 | 8mm Screw Caps — Black, White (Polypropylene) |
| Vials | 8mm Screw Thread Clear and Amber Glass Vials (1.5mL, 1mL) |
| Thread | 8-425 / ND8 |
- Color
- Red/ White Septa
- Diameter
- 8mm
- Dimensions
- 8mm x 1.5mm
- Pack Count
- 100
- Septa Material
- Silicone/ PTFE
- Sterility
- Nonsterile
- Weight
- 0.03
- 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.
- 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.
- Volatile Compound Analysis - Leak-resistant seal prevents analyte evaporation losses during extended autosampler queue wait times before injection.
- HPLC Mobile Phase Contact - PTFE sample-contact layer provides chemical inertness across acidic, basic, and organic mobile phase conditions.