CUSTOM ITEM: Caps, Screw Top, with Beige Silicone Rubber / White PTFE ultra-pure Septa, fitted in "knurled", polypropylene, Blue Caps with 6mm holes. For use with 9-425 thread, 12x32mm autosampler vials. MICROSOLV Brand. BULK PRICING.
Additional Info:
Improve autosampler alignment and analytical cleanliness with screw top caps designed for sensitive workflows and challenging injection conditions.
9502S-36B caps feature a larger 6 mm center opening, increasing the target area for autosampler needles. This design helps reduce the risk of needle misalignment or striking the cap edge, making it especially useful for systems with tighter tolerances or high‑throughput conditions. The knurled polypropylene cap ensures consistent grip and easy handling in both manual and automated environments.
The beige silicone rubber / white PTFE septa is manufactured to an ultra‑pure standard, helping reduce extractables and contamination risk in sensitive analyses. The PTFE layer provides excellent chemical inertness, while the silicone backing delivers resealability and durability for repeated injections, making these caps well suited for LC‑MS and HPLC applications requiring high purity.
Key Benefits
6 mm opening provides larger needle target area
Reduces risk of autosampler misalignment or cap edge contact
Ultra‑pure septa minimizes contamination and extractables
PTFE/silicone construction ensures chemical resistance and resealability
Knurled cap design improves grip and handling
Compatible with standard 9‑425 (ND9) screw thread vials
Typical Applications
LC‑MS and LC‑MS/MS workflows
HPLC and UHPLC analysis
Sensitive or trace‑level compound analysis
Autosamplers with alignment variability
Pharmaceutical and analytical laboratories
Specifications
Cap Type: Screw Top
Thread Size: 9‑425 (ND9)
Cap Material: Polypropylene (knurled, blue)
Septa: Beige silicone rubber / white PTFE (ultra‑pure)
Opening Size: 6 mm
Compatibility: 12 × 32 mm autosampler vials
Pack Size: 100 caps
Compatibility
Designed for 9‑425 (ND9) screw thread autosampler vials
Compatible with standard 12 × 32 mm vial formats
Suitable for HPLC and LC‑MS workflows
Performance and Design Notes
Larger opening improves autosampler targeting accuracy
Ultra‑pure septa reduces risk of contamination
PTFE layer minimizes analyte interaction
Designed for reliable performance in sensitive analyses
Important Notes
Custom item
Ideal for systems requiring larger needle access area
Suitable for high‑purity and high‑precision workflows
Custom Item Pricing Information