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 E4400-100ML FE4400Lanthanum AAS conc 2% ,100LPF Price on request E2213-100ML FE2213 Thermo ICP 15 ,100LPF Price on request E1381-100ML FE1381 Cesium ICP 10mg/L ,100LPF Price on request