Use certified clean, low particle, low background vials for your high sensitivity LC/MS, GC/MS and chromatography applications. The Thermo Scientific™ Virtuoso™ 9mm MS Certified Amber Glass Screw Thread Vial Kit is designed exclusively for use with the Virtuoso Vial Identification System, thus ensuring the highest level of sample integrity printing reliable sample data directly on the vial's V-Patch. The vial incorporates Advanced Vial Closure System (AVCS) technology to nearly eliminate septa push-through. Every pack comes with a Certificate of Conformance.