vacuümvials
Vacuümvials are sealed containers from which air has been evacuated to create a low-pressure environment inside. They are used to store, transport, or prepare samples in which exposure to air, moisture, or volatile components could cause loss, degradation, or reaction. By reducing headspace, they help minimize evaporation and oxidation of sensitive liquids or gases.
Construction and materials commonly include borosilicate glass or high-strength plastics. Closures are typically screw caps or
Size range and varieties vary widely. Common volumes span from about 0.5 mL to 60 mL. For
Applications include analytical laboratories for gas sampling, headspace analysis, or storage of volatile standards and reagents.
Handling and safety considerations include avoiding mechanical shock to prevent implosion of glass components, using appropriate
See also: Vacuum seal, headspace sampling, cryovials, ampoules, gas-tight containers.