3,3'-Dimethylbenzidine, 100mg

Arochlor 5460 , 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-10, Cas.no. 11126-42-4

Perfluoro-3-methylheptanoic acid, 1.2ml x 50ug/ml, methanol

Mono-ethyl phthalate (ring-1,2-13C2,99%, dicarboxyl-13C2,99%) 100 µg/mL in MTBE