Caps, Screw Top, with Silicone Rubber / PTFE, ultra-pure Septa, fitted in "knurled", polypropylene, Light Blue Caps. For use with 9-425mm thread, 12x32mm autosampler vials. AQR Brand. 100/PK.
Additional Info:
The 9509S‑10C‑B Ultra‑Pure Screw Caps are engineered for highest‑purity chromatographic applications where background interference must be minimized. These caps feature non‑pigmented silicone rubber and PTFE septa, with no added dyes or colorants, delivering exceptional chemical inertness.
Designed for 9‑425 thread, 12 × 32 mm autosampler vials, the septa are fitted into light blue, knurled polypropylene caps and manufactured using ultra‑clean materials to support LC‑MS, GC‑MS, and LC‑MS/MS workflows requiring maximum signal integrity.
These caps are an excellent choice for users seeking performance comparable to LC‑MS‑certified systems, including those used in Waters® Alliance and Acquity™ platforms, when a non‑pre‑slit septum is required. For instruments that require pre‑slit septa, see catalog 9509S-30C-B