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 E1197-100ML FE1197 Ytterbium ICP 10g/L ,100LPF Price on request E1233-100ML FE1233 Sodium ICP 10g/L ,100LPF Price on request E1336-100ML FE1336 Neodymium ICP 100mg/L ,100LPF Price on request