Mass-Labelled PCB Cleanup/Sampling Standards, 1.2ml, nonane

1,2,3,4-Tetrachlorodibenzo-p-dioxin, 1.2ml x 50ug/ml, nonane

1,2-Bis(2,4,6-tribromo[13C6]phenoxy)ethane, 1.2ml x 50ug/ml, toluene

2-Nonanone, 1ml