Which vial is used for HPLC?

In High-Performance Liquid Chromatography (HPLC), the type of vial used depends on the specific requirements of the analysis, the nature of the sample, and the HPLC system being employed. However, commonly used vials for HPLC are made of glass or plastic.

  1. Glass Vials:
    • Borosilicate Glass: These vials are highly resistant to temperature changes and chemical reactions. Borosilicate glass is the preferred choice for many HPLC applications as it minimizes the risk of sample contamination.
    • Clear or Amber Glass: Clear glass vials are suitable for most applications, but amber glass vials are used when samples are light-sensitive, as amber glass provides protection against ultraviolet (UV) light.
  2. Plastic Vials:
    • Polypropylene (PP) or Polyethylene (PE): Plastic vials are less common but can be used for certain applications. They are inert and less prone to breakage compared to glass vials. However, they may not be suitable for all types of samples, especially if the sample is reactive with plastic.
  3. Septa:
    • Regardless of the vial material, the vials are typically equipped with a septum, which is a thin, flexible material that seals the vial and allows a syringe needle to penetrate for sample injection.

When choosing a vial for HPLC, it’s essential to consider factors such as sample compatibility, potential interactions with the vial material, and the specific requirements of the chromatographic analysis. It’s also important to ensure that the vial and septa materials are compatible with the solvents and conditions used in the HPLC system. Always refer to the instrument and column manufacturer’s recommendations for the most suitable vial type for your specific application.

 

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