Dicofol, 100 µg/ml, Ethyl acetate, 5ml

N-Nitrosomorpholine, 100µg/ml in MeOH, 5ml

Di-o-tolylphenyl phosphate,100 µg/mL,isooctane,1mL,

PCB No. 47, 100µg/ml in Isooctane, 1ml