Multi-Element Calibration Standard-2A

7,10-Dimethylbenzo[a]pyrene, 50µg/mL, Solvent-toluene, Unit 1mL, # of units-1, Cas.no. 63104-33-6

3,3',4,5,5'-Pentachlorobiphenyl ,100 µg/mL,isooctane,1mL,

Metals Mix