1.5mL Screw Neck ND9

300µL Clear Glass Flat Bottom Insert for 9-425 Vials (31×6 mm)

Catalog #: Chromatography Autosampler Vial Inserts

Flat Bottom Inserts fit precisely into 9-425 HPLC and GC vials, providing stable, reproducible, and cost-effective microvolume sampling.

Available SKUs

Model Specification MOQ
NKI-300 300µL Flat Bottom Micro Insert for 9-425 Vials, 31×6mm 1 pk
Ships within 5-7 business days
Certificate of Analysis included
Quality guaranteed

Product Overview

Flat Bottom Inserts fit precisely into 9-425 HPLC and GC vials, providing stable, reproducible, and cost-effective microvolume sampling.

Research Applications

  • Noke Flat Bottom Inserts are precisely matched to vial dimensions for stable positioning and consistent, reproducible sampling.
  • Manufactured from USP Type I borosilicate glass for high chemical durability.
  • Consistent inner dimensions for reliable autosampler performance.
  • Available in convenient 100 pcs packaging (bag or box option).
  • Suitable for HPLC, GC, LC-MS and GC-MS applications in pharmaceutical, environmental and research laboratories.

Key Features

  • NokeLab is a trusted factory manufacturer of chromatography vials and caps/septa, known for stable quality, competitive pricing, and fast OEM service.

Technical Support

Our team of product experts is available to assist with your research needs.

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OEM Services

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

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Item Description Micro Insert
Bottom Type Flat Bottom
Capacity 300 µL
Material Borosilicate glass
Height (Metric) 31 mm
Outside Diameter (Metric) 6 mm
For Use Wide-Opening 2mL Vials (9-425)
Technique GC, GC & GC/MS, LC, LC/MS

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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.

Request Custom Synthesis Contact Us