INVESTIGADORES
ROJAS Ana Maria Luisa
artículos
Título:
Determinación de vitamina C en productos frutihortícolas.
Autor/es:
ROJAS A.M. Y GERSCHENSON L.N.
Revista:
Journal of the Argentine Chemical Society
Editorial:
de la Asociación Química Argentina.
Referencias:
Lugar: Sánchez de Bustamante 1749, Ciudad de Buenos Aires, Argentina.; Año: 1991 vol. 79 p. 97 - 106
ISSN:
0365-0375
Resumen:
Abstract: An spectrofotometric technique is proposed for vitamin C dosage in the presence of potential interfering compounds, usually present in fruits and vegetables. The 2,6-diclorophenol-indophenol is used as indicator; its excess is extracted with xylene to increase the sensibility of the method. Iron(II), tin(II), copper(II), lysine, sulphite, reductones and natural occurring pigments produce no interference. The proposed technique shows good accuracy (variation coefficient smaller than 10%) and good recovery.
