Hexachlorocyclopentadiene, 100 µg/ml, Cyclohexane

Malonic acid-dimethyl ester, 250mg

Benzo[c]phenanthrene[5,6]quinone, neat, Solvent-neat, Unit 10mg, # of units-1, Cas.no. 734-41-8

EN 15721 Internal Standard Stock Solution, procedure B 1382.2 Ethanol 16mL 8919.5 4-Methyl-2-pentanol 160µL Gives a concentration of approx. 8mg/mL