Parathion-methyl, 100 µg/ml, Toluene, 1ml

1,2,5,6,9,10-Hexachlorododecane, 100µg/ml in Isooctane, 1ml

1,4-Butanediol, 1ml

2,2,3,3,4,5,6,6-Octachlorobiphenyl