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 54150 Complex Cyanide (CN-), 1000µg/ml in Tr. NaOH / Water, 100ml Price on request VHG-OAS-1000-50G Arsenic Standard: 1000 µg/g As in 75 cSt Hydrocarbon Oil, 50g Price on request 59930 Fluoride 0.1 µg/mL (F-) in Water, 500ml Price on request