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 E4030-100ML FE4030Gadolinium for AAS 1g/L ,100LPF Price on request E1109-100ML FE1109Lithium ICP 1g/L ,100LPF Price on request E1183-100ML FE1183 Samarium ICP 10g/L ,100LPF Price on request