Labelled Cleanup Stock Solution, 1.2ml, nonane

ι-1,2,5,6,9,10-Hexabromocyclododecane, 1.2ml x 50ug/ml, toluene

Mass-Labelled PCDD/PCDF Internal Standard Solution, 1.2ml, nonane

2,2',3,4,4',5,5',6-Octachloro-3'-methoxybiphenyl, 1.2ml x 50ug/ml, nonane