This is the first published method for the determination of all 8 xanthophylls permitted in EU for feeding of laying hens and thus transfered to yolks, by isocratic separation of the analytes by high-performance liquid chromatography. Among the investigated compounds figured xanthophylls naturally present in the feed or added, the permitted synthetic xanthophylls were included. The method is fast, simple and reliable.
COBISS.SI-ID: 5334042