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Thumbnail Filmstrip of Red PTFE/White Silicone 9x1mm Vial Septa, 100/Pk Images
Red PTFE/White Silicone 9x1mm Vial Septa, 100/Pk - CV1802
Dual-layer construction in Tisch chromatography septa combines PTFE chemical resistance on the sample-contact side with flexible backing for reliable needle penetration and resealing. PTFE sample-contact surface eliminates extractable contamination from the seal, preserving chromatographic baseline integrity across extended autosampler queue sequences. 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. PTFE chemical inertness at the sample contact surface keeps your chromatographic baseline clean, while the flexible backing delivers reliable reseal performance through repeated injections. 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 | 9mm Short Thread Screw Caps — Blue, Black (Polypropylene) |
| Vials | 9mm Short Thread Clear and Amber Glass Vials (1.5mL, 0.3mL) |
| Thread | Short Thread / ND9 |
- Color
- Red/ White Septa
- Construction
- Silicone
- Diameter
- 9mm
- Dimensions
- 9mm x 1mm
- 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.
- 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.
- Volatile Compound Analysis - Leak-resistant seal prevents analyte evaporation losses during extended autosampler queue wait times before injection.
- Multiple Injection Sequences - Reseal-engineered construction maintains gas-tight closure integrity through repeated autosampler needle punctures.