Vial/Insert, 12x32mm, 9mm Thread with White Marking Spot, 100/pk. Autosampler Vials, Inserts, and Closures | Fisher Scientific. Autosampler vials hold samples that will be injected from an autosampler into a chromatograph or similar analyzer. A needle is used to pierce the cap and HPLC GC Vials | Cuvet.Co Cells. V8002, 8mm Diameter, 8-425, Vial