Total Residual Free Chlorine (Cl)

Mass-Labelled Mono to Decachloro PCB Solution/Mixture, 1.2ml, nonane

Chlorpyrifos-methyl, 10 µg/ml, Acetone, 10ml

1,2-Dibromo-4-(1,2-dibromomethyl)cyclohexane,50 µg/mL,MeOH,1mL,