Abstract
Spirulina platensis alga sampled in the Caribbean Sea and seven other commercial algal products available on the Italian market of different origin and aspect, have been analyzed by instrumental neutron activation analysis (INAA) and inductively coupled plasma-atomic emission spectrometry (ICP-AES). By neutron irradiation and γ-ray spectrometry (INAA), as many as 20 elements could be measured instrumentally without any chemical treatment. Cu, Mg, Mn and Pb were determined after dissolution of the sample by ICP-AES. The cross-checking of the data, specifically by comparing those of Ca, Cr, Fe and Zn, obtained by the two techniques was found to be in good agreement. Special attention from analytical and nutritional point of view has been devoted to the toxic metals. The measurements have been carried out employing the reference algal material prepared by International Atomic Energy Agency (IAEA).
Published Version
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