auto sampler vial
An auto sampler vial is a critical component in analytical chemistry and laboratory automation, serving as a specialized container designed for holding liquid samples in automated analysis systems. These precision-engineered vessels are crafted from high-quality borosilicate glass or specialized polymers, ensuring sample integrity and analytical accuracy. The vials come in various standardized sizes, typically ranging from 2mL to 40mL, with the most common being 2mL vials for chromatography applications. Each vial features a specific design that includes a carefully constructed neck, compatible with automatic sampling systems, and a precision-ground finish that ensures proper sealing. The vials are equipped with caps or septa that maintain sample integrity and prevent contamination or evaporation. Modern auto sampler vials often incorporate advanced features such as write-on spots for sample identification, graduation marks for volume reference, and specialized coatings that minimize sample interaction with the glass surface. These vials play a crucial role in various analytical techniques, including gas chromatography, high-performance liquid chromatography, and mass spectrometry, enabling consistent and reliable sample introduction into analytical instruments.