Sulfate (SO4-2), 1000µg/ml in Water, 100ml Back Catalog number: 54106 Manufacturer: ABSOLUTE STANDARDS Availability: 3 weeks Price on request - + Recommended E4081-100ML FE4081 Vanadium for AAS 1g/L ,100LPF Price on request E1404-100ML FE1404 Neodymium ICP 10mg/L ,100LPF Price on request E4008-100ML FE4008 Barium for AAS 1g/L ,100LPF Price on request