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Título:
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Quantitative reversed phase HPLC analysis of l-ascorbic acid (vitamin C) and identification of its degradation products
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Autores:
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LLOYD, LINDA L. ;
WHITE, C. A. ;
KENNEDY, J. F.
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Tipo de documento:
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texto impreso
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ISBN/ISSN/DL:
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32621
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Nota general:
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ISBN:
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Langues:
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Inglés
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Clasificación:
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S (Separata)
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Clasificación:
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BEBIDAS NO ALCOHÓLICAS
DEGRADACIÓN
VITAMINAS
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Resumen:
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An isocratic ion supression reversed phase method is utilized for the qualitative and quantitative determination of l-ascorbic acid in fresh fruit juices complex sample matrices. The selectivitiy of the method, when a macroreticular poly (styrene divinylbenzene) reversed phase adsorbent is used, is sufficient to resolve the isomers l-ascorbic acid and D-erythorbic acid (isoascorbic acid ) to baseline in under 8 minutes. L-ascorbic acid solution stability is monitored using the same analytical conditions with the degradation products sufficiently well resolved not to interfere in the quantification of l-ascorbic acid. By the use of commercial materials and the preparation of the proposed products of the oxidative degradation of l-ascorbic acid the degradation sequience and identification of the products in an aged l-ascorbic acid solution is accomplished.
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Nota de contenido:
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En: Chromatographia. -- (24) : 371-376 (1987)
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