Sulfate (SO4-2), 1000µg/ml in Water, 100ml Back Catalog number: 54106 Manufacturer: ABSOLUTE STANDARDS Availability: 3 weeks Price on request - + Recommended E1413-100ML FE1413 Rhodium ICP 10mg/L ,100LPF Price on request E1432-100ML FE1432 Tungsten ICP 10mg/L ,100LPF Price on request E2231-100ML FE2231Multielement-3 ICP 4 ,100LPF Price on request