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As part of a United Nations Children's Found (UN¬ICEF) study, an analytical method is proposed for routine analysis of vitamin A in milk and flour consumed by 1- to 4-year-old children in Côte d'Ivoire. The method involves liquid-liquid extrac¬tion of sample followed by reversed-phase liquid chromatography (LC). The method has been vali¬dated and used to analyze various samples col¬lected at different locations and stored under unfa¬vorable conditions. Average vitamin A content was 575 μg/100 g for milk powder and 1350 μg/100 g for millet flour. Lower contents were found in corn flour (40-240 μg/100 g), and no vitamin A could be detected in rice flour

Determination of vitamin a in milk and flour consumed by one- to four-year-old children in côte d'ivoire