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Thumbnail Filmstrip of Natural PTFE/Yellow Silicone 20x3mm Vial Septa, 100/Pk Images
Natural PTFE/Yellow Silicone 20x3mm Vial Septa, 100/Pk - CV1988
Precision-cut to exact dimensional specifications, Tisch CV1988 septa deliver consistent compression and seal performance across crimp, snap, and screw-thread closure systems. 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.
From tray loading through the final injection in an overnight sequence, your sample containment system should perform without introducing the variables your method is designed to control. PTFE chemical inertness at the sample contact surface keeps your chromatographic baseline clean, while the flexible backing delivers reliable reseal performance through repeated injections. Standardize your sample containment system on components engineered for the dimensional precision and chemical inertness your chromatographic methods demand.
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
- Natural/ Yellow Septa
- Construction
- Silicone
- Dimensions
- 20mm x 3mm
- Pack Count
- 100
- Sterility
- Nonsterile
- Weight
- 0.29
- 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.