ND18 Headspace Screw Neck (10–20 mL)

UltraClean 18mm Silver Magnetic Screw Cap, white PTFE/transparent blue Silicone (1.5 mm Thick)

Catalog #: ND18 SPME Headspace Screw Caps

UltraClean septa for GC and headspace analysis, made from the highest purity silicone and PTFE film, processed through rigorous curing and conditioning for consistent performance.

Available SKUs

Model Specification MOQ
NKSSC-18M-T UltraClean 18mm Silver Magnetic Screw Cap, white PTFE/transparent blue Silicone (1.5 mm Thick) 1 pk
Ships within 5-7 business days
Certificate of Analysis included
Quality guaranteed

Product Overview

UltraClean septa for GC and headspace analysis, made from the highest purity silicone and PTFE film, processed through rigorous curing and conditioning for consistent performance.

Research Applications

  • UltraClean septa for GC and headspace analysis, made from high-purity silicone rubber and PTFE, with rigorous curing for reliable and consistent lab performance.
  • Compatible with 10 mL and 20 mL precision screw headspace vial.
  • Ultra-low bleed septa minimize contamination, ensuring accurate and reliable results in sensitive analytical techniques such as GC-MS and LC-MS.
  • Magnetic Cap: Compatible with automated samplers allowing magnetic picking for ease of handling.
  • Thinner septum (1.3 mm or 1.5 mm) allows easier needle penetration with less fragmentation, ideal for SPME applications.

Technical Support

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OEM Services

Need modifications or larger quantities? Request a custom synthesis quote.

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Closure type Screw closure
Nominal diameter N 18
Cap color Silver
Cap material Metal (magnetic)
Septa thickness 1.5 mm
Septa UltraClean (Low Bleed)
Septa material white PTFE/transparent blue Silicone
Autosampler CTC, Shimadzu
Recommended application Headspace, SPME

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Need OEM or a Custom Configuration?

We support practical, production-ready customization for vials, caps, and septa. Share your autosampler type, dimensions, septa preference, and packaging needs—our team will confirm feasibility and lead time.

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