11mm BTO Septa
Premium 11mm BTO (Bleed-Through Optimised) PTFE/Silicone Septa designed for GC and GC-MS autosampler vials, delivering ultra-low septum bleed, excellent resealing performance, and reliable sample integrity.
- Product Name
- 11mm BTO Septa
- Part Number
- N9306219
- Size
- 11 mm
- Material
- PTFE/Silicone (BTO)
- Technology
- Bleed-Through Optimised (BTO)
- Compatible Caps
- 11mm Snap Caps & Crimp Caps
The 11mm BTO Septa (Part No. N9306219) are high-performance PTFE/Silicone laminated septa engineered for use with 11mm snap-top and crimp-top GC autosampler vials. Manufactured using Bleed-Through Optimised (BTO) technology, these septa significantly reduce background contamination and septum bleed, making them ideal for highly sensitive GC-MS, headspace GC, and trace-level analytical applications. The chemically inert PTFE layer provides outstanding resistance to aggressive solvents, while the silicone core ensures excellent resealing after repeated needle punctures. This combination minimizes ghost peaks, improves analytical accuracy, and extends septum life during routine laboratory analysis. Key Features - BTO (Bleed-Through Optimised) technology - Ultra-low septum bleed for GC-MS - High-quality PTFE/Silicone laminate - Compatible with 11mm snap and crimp caps - Excellent resealing after multiple injections - Chemically inert PTFE surface - Low extractables and background contamination - High temperature resistance - Ideal for trace-level analysis - Consistent sealing performance Applications - GC-MS analysis - GC headspace analysis - Trace organic compound analysis - VOC analysis - Environmental testing - Pharmaceutical quality control - Food & beverage testing - Forensic laboratories - Chemical laboratories - Research & development laboratories