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Figure 1. Example chromatogram of infant formula powder; carotenoids at 450 nm.
Trans lutein (Lut) and trans beta-carotene (bCar) are followed by their cis-isomers.
Figure 2. Example chromatogram of a vegetable mixture; carotenoids at 450 nm. DMT (IS) elutes at 19.5 min and
is determined at 292 nm. The all-trans carotenoids are marked as: Lut = Lutein, Zea = Zeaxanthin, Crypto =
Cryptoxanthin, Lyco = Lycopene, aCar = alpha-Carotene and bCar = beta-Carotene; and are followed by their cis-
isomers.
Carot-01 (February 2016)
FOR ERP USE ONLY
DO NOT DISTRIBUTE