Ethoprophos, 100 µg/ml, Toluene, 1ml

Heptachlor, 100µg/mL, Solvent-dichloromethane, Unit 1mL, # of units-1, Cas.no. 76-44-8

N-Ethyl-n-perfluorobutanesulfonamide (N-EtFBSA), 50μg/ml in Acetonitrile, 1ml

PCB No. 209, 100µg/ml in Cyclohexane, 5ml