CUSTOM ITEM: Caps, Screw Top, with ultra-clean Silicone Rubber / PTFE Septa, fitted in "knurled", polypropylene, Red Caps. For use with 9-425mm thread, 12x32mm autosampler vials. MICROSOLV Brand. BULK PRICING.
Additional Info:
Ultra‑clean septa are selected for applications requiring minimal background interference and high sample purity.
The 9502S‑14C‑R screw caps feature a bright white, ultra‑clean silicone/PTFE septum formulated to reduce extractables and improve baseline stability in sensitive analytical methods. The PTFE layer provides chemical resistance while the silicone core supports reliable sealing and repeat injections.
The red polypropylene cap includes a knurled exterior for secure handling and consistent torque during application. Designed for standard 9‑425 thread, 12 × 32 mm autosampler vials, these caps are well suited for LC‑MS, HPLC, and trace‑level analyses where cleanliness is critical.
Key Features & Benefits
Ultra‑clean white silicone ✅ Reduced background and extractables
PTFE/silicone septa ✅ Chemical resistance and sample protection
Consistent resealing ✅ Supports repeat injections
Fits 12 × 32 mm autosampler vials ✅ Standard 9‑425 compatibility
Red knurled cap ✅ Easy handling and identification
Typical Applications
LC‑MS and high-sensitivity analysis
HPLC workflows requiring low background
Pharmaceutical and trace analysis
Analytical testing laboratories
Important Notes
For 9‑425, 12 × 32 mm autosampler vials only
Suitable for multiple injections
Designed for low-background applications
This and other custom items are Custom Ordered and require quotation
Custom Item Pricing Information