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

2,2',4,6,6'-Pentachloro[13C12]biphenyl, 1.2ml x 50ug/ml, nonane

2,2',3,4,5,5'-Hexachlorobiphenyl-3',4',6'-d3,100 µg/mL,isooctane,1mL

Indole