Potassium (K) Back Catalog number: 59284 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended EPA-8290HRCC0.25 Supplemental Calibration Solution, 500ul, nonane Price on request E523002 Emodin-d4, 1mg Price on request 2014.12-100-IO 2,3,3',4,4',5'-Hexachlorobiphenyl, 100 µg/mL, Solvent-Isooctane, Unit 1mL, # of units-1, Cas.no. 69782-90-7 Price on request