tA carotenoid purification method with dual-mode countercurrent chromatography (CCC) for -carotene,-carotene and lutein from a fresh carrot extract was developed. The fluorinated liquid benzotrifluo-ride (IUPAC name: (trifluoromethyl)benzene) was used as a novel modifier in the non-aqueous ternarysolvent system n-hexane/benzotrifluoride/acetonitrile. The ternary phase diagram of the type I solventsystem was used to select two-phase solvent mixtures which enabled an efficient preparative separa-tion of -carotene, -carotene and lutein from concomitant pigments in crude carrot extract. By meansof the modifier, high separation factors (˛ ≥ 1.2) were obtained, allowing baseline resolution between-carotene and -carotene due to specific chemical interactions such as – molecular interactions.After optimizing the injection step with a pseudo-ternary phase diagram, 51 mg of -carotene, 32 mgof -carotene and 4 mg of lutein could be isolated from 100.2 mg crude carrot extract in a short timeand with high purities of 95% and 99% by using dual-mode CCC, respectively. Temperatures >22◦C had anegative impact on the separation of -carotene and -carotene.