Mass-Labelled PBDE Solution/Mixture, 1.2ml, nonane

2,2',4,4',6-Pentabromo-6'-hydroxy[13C12]diphenyl ether, 1.2ml x 50ug/ml, toluene

PCB 112, 1000µg/ml in Isooctane, 10ml

Theophylline, 100μg/mL in Acetonitrile, 1ml