Sulfide (S), 1000 µg/mL in Water, 3 x 20ml Back Catalog number: 54139 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended E1024-100ML FE1024Germanium ICP 1g/L ,100LPF Price on request E1415-100ML FE1415 Sulfur ICP 10mg/L ,100LPF Price on request E4004-500ML FE4004 Arsenic for AAS 1g/L ,500LPF Price on request