Solution #1

Di-isobutyl phthalate, 1000µg/ml in MeOH, 1ml

1,2,4,5-Tetrachlorobenzene, 100µg/mL, Solvent-c.hexane or ac.nitrile, Unit 1mL, # of units-1, Cas.no. 95-94-3

Dodecylbenzene (hard type) (mixture of branched chain isomers), 500ml