CUSTOM ITEM: Caps, Screw Top, with Red PTFE / White Silicone Rubber / Red PTFE Septa, fitted in smooth sided, Robo Style, soft polypropylene, Yellow Caps. For use with 9-425mm thread, 12x32mm autosampler vials. MICROSOLV Brand. BULK PRICING.
Additional Info:
Tri-layer septa are used to improve needle wiping performance and reduce potential carryover during autosampler injections.
The 9502S‑E‑40C‑Y screw caps feature a PTFE/silicone/PTFE septa construction that increases surface contact with the autosampler needle, helping provide additional cleaning during penetration. This design is particularly useful for certain legacy systems, such as Agilent 1050 instruments, where enhanced needle wiping can improve analytical results and consistency.
The tri-layer configuration also provides improved resealing compared to standard silicone/PTFE septa. The Robo Style smooth-sided cap design supports automated handling systems, offering consistent positioning and compatibility similar to Thermo / National Scientific DP® caps. The yellow polypropylene cap allows easy identification and secure handling with standard 9‑425, 12 × 32 mm autosampler vials.
Key Features & Benefits
PTFE/silicone/PTFE tri-layer septa ✅ Improved needle wiping and reduced carryover
Enhanced resealing vs standard septa ✅ Supports repeat injections
Robo Style smooth cap ✅ Optimized for robotic handling
Fits 12 × 32 mm autosampler vials ✅ Standard 9‑425 compatibility
Yellow cap format ✅ Easy identification and handling
Typical Applications
HPLC and UHPLC analysis
LC‑MS and GC‑MS workflows
Legacy systems (e.g., Agilent 1050)
Automated autosampler environments
Important Notes
For 9‑425, 12 × 32 mm autosampler vials only
Designed for improved needle wiping and cleaning
Suitable for multiple injections
Comparable to Thermo / National Scientific DP® caps
This and other custom items are Custom Ordered and require quotation
Custom Item Pricing Information