Dicofol, 100 µg/ml, Toluene, 5ml

2,2',3,3',4,5,5'-Heptachloro-4'-methoxy[13C12]biphenyl, 1.2ml x 50ug/ml, toluene

2,6-Dichlorotoluene, 100mg

EDDP-d3 perchlorate,1000 µg/mL (as pyrrolinium) ,MeOH,1mL,