Parathion-methyl, 100µg/mL in Acetonitrile, 1ml

1,3,8-Trichlorodibenzofuran, 1.2ml x 50ug/ml, nonane

4-n-Octylphenol, 100 µg/ml, Acetone, 1ml

3,4,4-Trichlorobiphenyl (BZ-37)