Potassium (K) Back Catalog number: 54558 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 11721.12-100-IO 2,3,3',4,5-Pentachlorobiphenyl,100 µg/mL,isooctane,1mL, Price on request 680404 Fluorene, 100 µg/ml, Acetonitrile, 1ml Price on request S-4215-1ML Mixture of Mineral Oils A+B without additives (1:1), neat, 1ml Price on request