2-Methylbenzophenone, 250mg

Ethyltriphenyltin-d15 (triphenyl-d15), 100µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no.

18O4-Sodium perchlorate, 100 µg/ml, Water, 1ml

PCB Congeners (10 ppm)