Hplc Caps

Product Description

HPLC caps are specialized closures designed for use with High-Performance Liquid Chromatography (HPLC) systems. They are typically used to seal vials or containers that hold samples for analysis in HPLC systems, preventing contamination, evaporation, and ensuring a proper seal during injection into the system.

Key Features of HPLC Caps:

• Material: Commonly made from PTFE (polytetrafluoroethylene), silicone, or other chemical-resistant materials. PTFE is often used for its inertness and ability to create tight seals.
• Fitment: Designed to fit a variety of sample vials, usually with a standard size (e.g., 9 mm, 11 mm, 13 mm), ensuring compatibility with HPLC vials.
• Septum: Most HPLC caps come with a septum (a thin rubber, silicone, or PTFE layer), which allows the needle of the HPLC injector to penetrate without contaminating the sample.