Dursban, 1000µg/mL in MeOH, 1ml

Mass-Labelled PCDD/PCDF Solution/Mixture , 1.2ml , nonane

Boron, 5000 µg/mL in H2O, 100ml

2,3',4,5,5'-Pentachlorobiphenyl,100 µg/mL,isooctane,1mL,