PCB Congener Surrogate Standard Mix

o-Cresol-PFB derivative

2-Fluorodibenzothiophene, 100µg/mL, Solvent-toluene, Unit 1mL, # of units-5, Cas.no. 177586-38-8

4,4'-Methylenebis (2-chloroaniline),100 µg/mL,acetonitrile,1mL,