Endosulfan (alpha and beta), 100 ng/µl, 1ml

4,4'-DDT (ring-13C12,99%) 100 µg/mL in Nonane, 1,2ml

Acrylate Mix

2,3,4,5-Tetrachloro[13C12]diphenyl ether, 1.2ml x 50ug/ml, nonane