Multi-Element Internal Standard

1,2,3,4,6,7,8-Heptabromodibenzo-p-dioxin, 1.2ml x 25ug/ml, toluene

4,4’-Oxydianiline

4,4''-Dinitro-p-terphenyl, neat, Solvent-neat, Unit 10mg, # of units-1, Cas.no. 3282-11-9