Sulfate (SO4-2), 1000µg/ml in Water, 100ml Back Catalog number: 54106 Manufacturer: ABSOLUTE STANDARDS Availability: 3 weeks Price on request - + Recommended E4005-100ML FE4005Gold for AAS 1g/L ,100LFL Price on request E1373-100ML FE1373 Boron ICP 10mg/L ,100LPF Price on request E2107-100ML FE2107 PE CRDL 15 ,100LPF Price on request