7.0 Chromatography Workstation Polypropylene injection vials with caps and septa, 0.3 mL (Dionex P/N 055428) Microcentrifuge tubes, 1.5 mL (Sarstedt P/N 72.692.005) Dry block heater (VWR P/N 13259-005) REAGENTS AND STANDARDS. Deionized (DI) water, Type I reagent grade, 18 MΩ-cm resistivity or better Acetonitrile (Honeywell P/N 015-4)