PCB Congeners & Hexachlorobenzene Mix #3

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

Diisodecyl phthalate-3,4,5,6-d4,100 µg/mL,MeOH,1mL,

S421, 10 µg/ml, Ethyl acetate, 10ml