Determinación del contenido de zinc en arroz y otros agroproductos por fluorescencia de rayos X

abstract the zn content in foodstuffs (rice, some vegetables and roots) regularly consumed in cuba is reported. concentrations are determined by x-ray fluorescence analysis using a set of organic standards doped with zn. the accuracy of the analytical procedure was validated using the certified reference materials aiea 393 and mab3/ tm. the obtained results show rice as the major zn bioaccumulator of the studied agriproducts and the main zn source of human consumption in cuba.