Potassium (K) Back Catalog number: 59939 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 59909 Cations Std. Level 4 Price on request DD-1234-S 1,2,3,4-Tetrachlorodibenzo-p-dioxin, 1.2ml x 50ug/ml, nonane Price on request 72664 Hexahydro-1,3,5-tris(hydroxyethyl)triazine Price on request