Tungsten (W) Back Catalog number: 57074 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 98637 Acetonitrile Price on request S-4140-KIT-8X1ML Nitrogen Calibration Set-Low Boiling Solvents Units: 1x1mL ampoules or 10mL screw-capped bottle Nitrogen introduced using Pyridine Catalogue No. Concentration Matrix: isooctane mg/kg (ppm) S-4140-0 Blank S-4140-03 0.3 Price on request M8FOSA-I Perfluoro-1-[13C8]octanesulfonamide, 50µg/ml in Isopropanol, 1,2ml Price on request