for qualitative measurements1% w/v of each analyte in ChloroformDimethyl isophthalate . 2 mLDiisohexyl phthalate .2 mL Diisodecyl phthalate. 2 mL Dimethyl phthalate . 2 mL Dicyclohexyl pthalate.2 mLDiundecyl phthalate . 2 mL Diethyl phthalate . 2 mLDi-n-o