Description. Autosampler Vials chromatography analysis contains LC,HPLC ,GC ,Pharma 4ML Vial Headspace analysis ,MS,GC-MS .We offer products that fthe vial autosamplers from all major instrument manufacturers, and that have the cleanliness, Analisis 4ML Screw Vial qualthe vials and reproducibilthe vials to guarantee a successful hplc.