(-)-Captopril,1000 µg/mL,MeOH,1mL,

1,4,6-Trichlorodibenzofuran, 1.2ml x 50ug/ml, toluene

delta-HCH, 10.0 µg/ml, Ethyl acetate, 10ml

2,2’,6,6’-Tetrachlorobiphenyl (54)