2,4-D,1000 µg/mL,MeOH,1mL,

PCB No. 184, 100µg/ml in Isooctane, 1ml

1,1-Dichloro-2-[2-chloro(13C6)phenyl]-2-[4-chloro(13C6)phenyl]ethene, 1.2mL x 100ug/mL, nonane

4-Bromodiphenyl ether, 50µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 101-55-3