Multi-Element Internal Standard

1-/3-Nitrobenzo[e]pyrene, neat, Solvent-neat, Unit 5mg, # of units-1, Cas.no. 91259-16-4 / 81340-58-1

L-PFOSK with branched isomers, 50µg/ml in MeOH, 1,2ml

Dibenzo[bc,ef]coronene, 100µg/mL, Solvent-toluene, Unit 1mL, # of units-1, Cas.no. 190-31-8