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An automated method for determination of ascorbic acid in urine by flow injection chemiluminescence coupling with on-line removal of interference

    1. [1] Hanshan Normal University

      Hanshan Normal University

      China

  • Localización: Journal of the Chilean Chemical Society (Boletín de la Sociedad Chilena de Química), ISSN-e 0717-6309, ISSN 0366-1644, Vol. 56, Nº. 4, 2011, págs. 938-940
  • Idioma: inglés
  • Enlaces
  • Resumen
    • A simple and automated method for determination of ascorbic acid (AA) in complex samples by flow injection chemiluminescence (FI-CL) was presented. It is based on the inhibitory effect of ascorbic acid on the chemiluminescence reaction between luminol and hydrogen peroxide in the flow system. A home-made micro column of cation exchange resin was adapted to the FI manifold to achieve on-line removal of interference. This method was used to determine the AA content in urine samples with a detection limit of 6.03 x10(9) mol/L AA and recovery of 93.1-111.0%. This proposed method allows high - throughput determination of AA in urine samples without chromatographic separation, demonstrating that the FI-CL method has significant potential in determination of species in complex samples by adapting a micro column filled with various functionalized materials to the FI manifold.

Los metadatos del artículo han sido obtenidos de SciELO Chile

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