Liquid Chromatographic Method for the Analysis of All-rac-α-tocopheryl Acetate and Retinyl Palmitate in Soy Based Infant Formula Using Matrix Solid Phase Dispersion
作者:
G.William Chase,
RonaldR. Eitenmiller,
AustinR. Long,
期刊:
Journal of Liquid Chromatography & Related Technologies
(Taylor Available online 1998)
卷期:
Volume 21,
issue 18
页码: 2853-2861
ISSN:1082-6076
年代: 1998
DOI:10.1080/10826079808003448
出版商: Taylor & Francis Group
数据来源: Taylor
摘要:
A liquid chromatographic method is described for the analysis of all-rac-α-tocopheryl acetate and retinyl palmitate in soy based infant formula. The vitamins are extracted from infant formula without saponification by matrix solid phase dispersion (MSPD) and quantitated by normal phase chromatography with fluorescence detection. Retinyl palmitate and all-rac-α-tocopheryl acetate are quantitated isocratically with a mobile phase of hexane containing isopropanol @ 0.125% (v/v) and 0.5% (v/v), respectively. Results compared favorably to the label declaration on a retail infant formula product.
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