D6-alpha-HCH, 100 µg/ml, Cyclohexane, 1ml

4-Bromodiphenyl ether, 50µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 101-55-3

Silicon (Si), 1000µg/ml in 2%-HNO3/Water, 100ml

Carbon tetrachloride