2,2',4,5'-Tetrabromobiphenyl, 1.2ml x 50ug/ml, nonane

D6-Dichlorvos, 100 µg/ml, Cyclohexane, 1ml

1,1-Bis(4-hydroxyphenyl)cyclohexane, 1.2ml x 50ug/ml, methanol

[13C12]Dibenzofuran, 1.2ml x 50ug/ml, toluene