Potassium (K), 1000µg/ml in 2%-HNO3/Water, 100ml Back Catalog number: 57019 Manufacturer: ABSOLUTE STANDARDS Availability: 3 weeks Price on request - + Recommended 64681 Malathion, 100µg/ml in MeOH, 1ml Price on request B447292-1MG Bisphenol AF-13C12, 1mg Price on request 59223 Total Organic Carbon (C) Price on request