PAH-Mix 24 deuterated, 10 ng/µl, 1ml

2,3,3',4,5,5'-Hexachloro[13C12]biphenyl, 1.2ml x 50ug/ml, nonane

3,4,5,6-Tetrachloroguaiacol

Mass-Labelled DDT & Related Compound Mix, 2µg/ml in Nonane, 1,2ml