Simultaneous Determination of Retinols and Tocols in Egg and Milk Products Based on RP-HPLC Linked with Fluorescent and Photodiode Array

Figure 4

Sample and standard contrast chromatogram (1: 11-cis retinol; 2: 9-cis retinol; 3: 13-cis retinol; 4: all-trans retinol; 5: unknown component).