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Premium 2mL Chromatography Vials: The 9mm Screw Thread Standard

In modern analytical laboratories, the 9mm screw thread vial has established itself as the universal choice for robotic autosamplers. Combining the wide opening of a crimp vial with the convenience of a screw cap, these chromatography vials offer superior performance for both HPLC and GC applications.

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Universal Compatibility for Autosamplers

 

Our 2mL vials are engineered with precise dimensions (12x32mm) to ensure 100% compatibility with leading instrument manufacturers. They are validated as Agilent compatible vials and work seamlessly with systems from:

  • Waters (ACQUITY / Alliance)

  • Shimadz u

  • Thermo Scientific

  • Varian / Bruker

 

Superior Borosilicate Glass 3.3 Construction

 

The quality of the glass directly impacts your results. We utilize USP Type I, Class A Borosilicate Glass 3.3, which features a low coefficient of thermal expansion. This high-grade material minimizes free ion activity, preventing pH changes in your sample that can occur with inferior soda-lime glass. Whether you choose clear glass for routine analysis or amber glass vials for light-sensitive compounds, the inert surface ensures high sample recovery.

 

Why Switch to 9mm Short Thread Vials?

 

Historically, labs used 11mm crimp vials or 8-425 screw vials. The 9mm wide opening vial is the superior evolution. It provides a 40% larger target area for the injection needle compared to standard 8mm vials, significantly reducing the risk of bent needles during high-speed injection. Additionally, the short-thread design allows the cap to be fully sealed with just a half-turn, improving ergonomic efficiency for lab technicians.

 

Are 9mm chromatography vials compatible with 11mm crimp vial autosamplers?

 

Generally, yes. Most modern autosamplers that accept 12x32mm vials can handle both 11mm crimp and 9mm screw thread vials because the external body dimensions are identical.

 

What is the volume capacity of these vials?

 

The standard capacity is 2mL (often filled to 1.5mL). They feature a write-on spot and graduation marks at 0.5, 1.0, and 1.5mL for easy visual volume verification.

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