chromatography vial
A chromatography vial is a specialized container designed for holding samples in analytical chemistry, particularly in chromatographic analysis. These precision-engineered vessels are essential components in both gas and liquid chromatography systems, offering reliable sample containment and protection. Manufactured from high-quality borosilicate glass or specialized polymers, chromatography vials feature carefully designed dimensions and closures to ensure compatibility with autosampler systems. The vials typically range from 2mL to 40mL in capacity, with the most common sizes being 2mL and 4mL for routine analysis. Each vial incorporates specific design elements, including precise thread patterns for caps, optimized internal geometry for maximum sample recovery, and specialized surface treatments to minimize sample interaction. The vials often feature write-on spots for sample identification and graduated markings for volume reference. Advanced versions may include amber glass construction for light-sensitive samples or silanized surfaces for enhanced chemical inertness. These vials play a crucial role in maintaining sample integrity throughout the analytical process, preventing contamination, evaporation, and degradation while ensuring accurate and reproducible results in chromatographic analysis.