Buy amber gc headspace vials for wholesales Thermo Fisher ChromatographySample Preparation Workflow Vials, Aer, 2mL, PTFE/Silicone Septa 03-377-300 Vials, Clear, 200µL Fused Insert, contamination using Thermo Scientific vials, available with N,N-Dimethylformamide, DMF, GC Headspace D1331 Dimethyl Sulfoxide, DMSO, GC Headspace D1391 N,N-Dimethylacetamide, DMAC, GC Headspace