2,6-Diaminotoluene, 250mg

o,p'-DDT, 100µg/ml in MeOH, 1ml

1,2,3,4,7,8-Hexachlorodibenzofuran ,50 µg/mL,n-nonane,1mL,

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