Sulfate (SO4-2), 1000µg/ml in Water, 100ml Back Catalog number: 54106 Manufacturer: ABSOLUTE STANDARDS Availability: 3 weeks Price on request - + Recommended E1182-100ML FE1182 Silicon ICP 10g/L ,100LPF Price on request 54112 Ammonia as (NH4+) Price on request E4040-500ML FE4040Lanthanum for AAS 1g/L ,500LPF Price on request