clear safety coated 40ml VOA vials with high quality Wheaton . clear safety coated 40ml VOA vials with high quality Wheaton Sigma 2ml vials with caps in amber for HPLC sampling price-Aijiren Hplc Vials VOA Vials - Open Top Closures and Septum Generally used for volatile organic compound analysis and sample storage, our 20mL, 40mL, and 60mL VOA vials are available in clear or amber borosilicate glass with a