The 9 mm Grey Polypropylene Screw Cap with Bonded Pre-Slit Septa is a premium laboratory closure designed for secure sealing of 9 mm screw-thread autosampler vials used in HPLC, GC, GC-MS, LC-MS, and chromatography applications. Manufactured from chemically resistant polypropylene (PP), the cap is fitted with a bonded PTFE/Silicone pre-slit septum, providing excellent chemical compatibility, sample integrity, and reliable needle penetration during repeated autosampler injections.
The pre-slit bonded septum minimizes coring, reduces septum push-through, and allows smooth needle entry, helping improve sample throughput and analytical reproducibility. The bonded construction prevents septum separation during handling while maintaining a secure leak-resistant seal for sample storage and analysis.
| Parameter | Specification |
|---|---|
| Product Type | Autosampler Screw Cap |
| Closure Size | 9 mm |
| Cap Color | Grey |
| Cap Material | Polypropylene (PP) |
| Thread Type | Short Thread |
| Septum Type | Bonded PTFE/Silicone |
| Septum Style | Pre-Slit |
| Seal Type | Leak-Resistant |
| Chemical Resistance | Excellent |
| Compatibility | 9 mm Screw Thread Autosampler Vials |
| Suitable Techniques | HPLC, UHPLC, GC, GC-MS, LC-MS |
| Quantity | 100 Caps/Pack |
