Multi-Element Internal Std., 10ug/ml, 4x25ml Back Catalog number: 52319 Manufacturer: ABSOLUTE STANDARDS Availability: 3 weeks Price on request - + Recommended DFP-LCS-B Mass-Labelled PCDDs/PCDFs/PCBs Solution/Mixture, 1.2ml, nonane Price on request 59493 Metals Mix Price on request 1022.24-K-IOX10 n-Tetracosane-d50, 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-10, Cas.no. 16416-32-3 Price on request