Sulfate (SO4-2), 1000µg/ml in Water, 500ml Back Catalog number: 54506 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended E1070-100ML FE1070 Ytterbium ICP 1g/L ,100LPF Price on request E4204-100ML FE4204 Sodium Alc for AAS 1g/L ,100LPF Price on request E1021-100ML FE1021 Iron ICP 1g/L ,100LPF Price on request