Catalog Number - 9509C-10CB

The 9509C‑10CB Ultra‑Pure Snap Caps are designed for low‑background, high‑sensitivity chromatographic applications, combining ultra‑pure silicone rubber and PTFE septa with a smooth polyethylene snap cap for reliable sealing and performance.

Manufactured with no added pigments or fillers, these septa minimize extractables and contamination, ensuring clean, reproducible results in LC‑MS/MS workflows.

Non‑Slit Septa – Enhanced Resealing Performance

• Solid (non‑pre‑slit) septa design provides:

  • Improved reseal after needle puncture

  • Lower risk of evaporation or sample loss

  • Better performance in multi‑injection workflows

✅ Ideal when sample integrity and resealing consistency are critical

Ultra‑Pure Materials – LC‑MS/MS Optimized

• Silicone rubber / PTFE septa with no added colorants

• Minimizes:

  • Background interference

  • Leachables and extractables

✅ Suitable for:

• LC‑MS / LC‑MS/MS

• Trace‑level analytical testing

11 mm Snap Cap Format – Fast & Efficient Handling

• Fits 11 mm snap top autosampler vials

• Designed for 12 × 32 mm vials

✅ Enables quick sealing and consistent autosampler compatibility

Polyethylene Cap Construction

• Smooth polyethylene cap design

• Easy to use in high‑throughput environments

• Light blue color for quick visual identification

✅ Supports efficient lab workflow and vial organization

Performance Advantage vs Pre‑Slit Septa

• Compared to pre‑slit options:

  • ✅ Better reseal and sample preservation

  • ✅ Reduced volatility loss in multiple injections

  • ⚠️ Requires slightly more needle force for penetration

✅ Preferred for applications prioritizing sample integrity over injection ease

Typical Applications

• LC‑MS/MS analysis

• Pharmaceutical QC and validation labs

• Environmental and food testing

• Multi‑injection autosampler workflows

• Trace‑level analytical methods

Important Usage Notes

• Designed for 11 mm snap top autosampler vials (12 × 32 mm)

• Best suited for workflows requiring strong resealing and minimal sample loss

• Confirm compatibility with autosampler needle force and injection settings

• Suitable for repeated injections and longer run sequences