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Thumbnail Filmstrip of Pre-Slit White PTFE/Red Silicone 8x2mm Vial Septa, 100/Pk Images
Pre-Slit White PTFE/Red Silicone 8x2mm Vial Septa, 100/Pk - CV1842
Engineered with a chemically inert PTFE contact layer, Tisch CV1842 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. 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. 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
- White/ Red Septa
- Diameter
- 8mm
- Dimensions
- 8mm x 1.5mm
- Pack Count
- 100
- Septa Material
- Silicone/ PTFE
- Sterility
- Nonsterile
- Weight
- 0.03
- HPLC Mobile Phase Contact - PTFE sample-contact layer provides chemical inertness across acidic, basic, and organic mobile phase conditions.
- 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.
- Light-Sensitive Samples - Pre-slit configurations reduce coring and particulate generation during needle penetration of amber vial closures.
- 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.