[13C12]Diphenyl ether, 1.2ml x 50ug/ml, nonane

2,6-Dichlorodibenzofuran, 1.2ml x 50ug/ml, nonane

Bentazone-8-hydroxy, 100 µg/ml, Acetonitrile, 1m

1,2,3,6,7-Pentachloronaphthalene, 1.2mL x 50ug/mL, nonane