Use Thermo Scientific™ 9mm Screw Thread Caps as closures for our 9mm Glass Screw Top Vials - Routine range. These autosampler vials and caps provide optimum performance in standard applications and high throughput analyses. They exhibit easy handling and high solvent compatibility for the mainstream HPLC and GC applications including: Chromatographic applications aligning with all pharmacopeias Lower risk of contamination, degradation, and adsorption Standard concentrations Perfect autosampler fit High throughput analysis