1.5mL Screw Neck ND8

250µL Clear Glass Flat Bottom Insert for 8-425 Vials (31×5 mm)

Catalog #: Chromatography Autosampler Vial Inserts

Noke vial inserts for chromatography sample preparation in HPLC, UHPLC, and GC. Improve peak shape, reduce tailing, and ensure accurate injections.

Available SKUs

Model Specification MOQ
NKI-250 250µL Clear Glass Flat Bottom Insert for 8-425 Vials (31×5 mm) 1 pk
Ships within 5-7 business days
Certificate of Analysis included
Quality guaranteed

Product Overview

Noke vial inserts for chromatography sample preparation in HPLC, UHPLC, and GC. Improve peak shape, reduce tailing, and ensure accurate injections.

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 250 µL
Material Borosilicate glass
Height (Metric) 31 mm
Outside Diameter (Metric) 5 mm
For Use 2mL Vials (8-425)
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.

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