Caps, Snap Top, with 0.04" thick, White Silicone Rubber / Yellow PTFE Pre-Slit (Star Shape) Septa, fitted in smooth, polyethylene, Light Blue Caps. For use with 11mm, 12x32mm Snap Top autosampler vials. BASIK Brand. 1000/CS.
Additional Info:
Snap caps provide a fast, press‑fit sealing solution that simplifies vial preparation while maintaining consistent autosampler performance. The silicone/PTFE septa offers dependable sealing with strong chemical resistance for routine analytical workflows.
The 9502C‑E‑31CB‑M BASIK Snap Caps feature a 0.04" thick silicone/PTFE septa with a star‑shaped (*) pre‑slit design. This multi‑slit configuration provides a significantly larger needle strike area, allowing easier alignment and minimal resistance during penetration. This is especially beneficial in high‑throughput autosampler environments where precision and consistency are critical.
The ultra‑low bleed septa formulation is designed to reduce extractables and background interference compared to standard septa, making these caps highly suitable for LC‑MS applications where sensitivity and cleanliness are essential.
While the star‑slit design improves ease of penetration and targeting, it does not reseal as effectively as single‑slit or non‑slit septa. As part of the BASIK product line, these caps provide a cost‑effective solution for high‑volume laboratories. The light blue polyethylene cap supports clear identification and efficient workflow organization.
Key Features & Benefits
Star‑shape pre‑slit septa ✅ Maximum needle target area
Easier penetration ✅ Minimal resistance during injection
Ultra‑low bleed septa ✅ Reduced extractables for LC‑MS
Silicone/PTFE construction ✅ Chemical resistance and protection
0.04" thick septa ✅ Durable for consistent performance
Economical BASIK line ✅ Cost-effective for high-volume use
Light blue cap format ✅ Supports identification and workflow organization
Typical Applications
LC‑MS workflows (low bleed requirement)
HPLC and UHPLC analysis
High‑throughput analytical laboratories
Methods requiring improved needle targeting
Important Notes
For 11 mm, 12 × 32 mm snap top autosampler vials only
Star‑slit design improves penetration but reduces resealing vs other septa types
Suitable for multiple injections depending on method requirements
Ultra‑low bleed septa recommended for LC‑MS sensitivity
Case quantity format (1000/CS)