An Efficient Solid-Phase Extraction-Based Liquid Chromatography Method to Simultaneously Determine Diastereomers <i>α</i>-Tocopherol, Other Tocols, and Retinol Isomers in Infant Formula

<div>Typical chromatograms of (a) tocopherols and tocotrienols in fluorescent detector and (b) retinols in photo-array detector: (A) presents all analytes in mixture standard solution, (B) presents analytes in matrix extraction, (c) presents peaks of D-<i>α</i>-tocopherol (C) and DL-<i>α</i>-tocopherol (D) in the relative standard solution, (d) presents chromatograms of components in SRM 1849a, (E) retinols in photo-array detector, (F) tocopherols and tocotrienols in fluorescent detector.</div>

Journal of Food Quality

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Figure 1: An Efficient Solid-Phase Extraction-Based Liquid Chromatography Method to Simultaneously Determine Diastereomers <i>α</i>-Tocopherol, Other Tocols, and Retinol Isomers in Infant Formula 

Figure 1 | An Efficient Solid-Phase Extraction-Based Liquid Chromatography Method to Simultaneously Determine Diastereomers α-Tocopherol, Other Tocols, and Retinol Isomers in Infant Formula 