Perfluoro-n-heptanoic acid, 1.2ml x 50ug/ml, methanol

PCB Isomer Standard “Dutch 7”, 10µg/ml in Isooctane, 1ml

8 alpha,9ß,10 alpha(H),14ß(H),17 alpha(H),21ß(H)-5,9-Dimethyl-25,27-bisnorhopane , neat, Solvent-neat, Unit ca. 5µg, # of units-1, Cas.no.

Dibenzo[a,e]pyrene, 200µg/mL, Solvent-toluene, Unit 1mL, # of units-1, Cas.no. 192-65-4