Jun 08, 2021 · BUY 40ml TOC Vials HERE (Total Organic Carbon). Greyhound chromatography has a wide range of Vials and Caps LEARN MORE. VIALS & CAPS CATALOGUE. The Greyhound range of Autosampler and Storage Vials cater for almost every conceivable storage requirement from micro litre to multi-litre volumes, screw top and crimp top, clear and amber glass and plastic material, with standard or speciality seals.