Tetrachlorophthalic anhydride,neat,neat,10mg,

MTBE, 1000µg/ml in MeOH, 5ml

1,2,3,7,8,9-Hexachloro[13C12]dibenzo-p-dioxin, 1.2ml x 50ug/ml, toluene

2,2',3,4,4',6-Hexachlorobiphenyl ,100 µg/mL,isooctane,1mL,