Potassium (K) Back Catalog number: 56719 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 678466 Paraoxon-ethyl, 10 µg/ml, Acetonitrile, 10ml Price on request 59914 Fluoride (F-) Price on request MBP-159 2,3,3',4,5,5'-Hexachloro[13C12]biphenyl, 1.2ml x 50ug/ml, nonane Price on request