Sulfate (SO4-2), 1000µg/ml in Water, 100ml Back Catalog number: 54106 Manufacturer: ABSOLUTE STANDARDS Availability: 3 weeks Price on request - + Recommended E1379-100ML FE1379 Cobalt ICP 10mg/L ,100LPF Price on request E1229-100ML FE1229Lithium ICP 10g/L ,100LPF Price on request E1509-100ML FE1509 Selenium(VI) ICP 100mg/L ,100LPF Price on request