These wide mouth autosampler vials are appropriate for many chromatography applications, including:HPLC,GC,IC,UHPLC,Sample storage.Snap vials have more Standard Screw Thread HPLC Vials Manufacturer from Thane. Zero Air Generator For GC · Nitrogen Generator for Gas Chromatographs Shell Glass Vials are an economical choice for many routine HPLC applications. Contaminant Identification in Pharmaceutical Products