Examinando por Autor "Calsina Ramos, Marina Erika"

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    Determinación de arsénico, cadmio y plomo en suplementos dietarios de origen vegetal de venta en el mercado Mundo Natural del distrito de Cercado de Lima durante el periodo mayo–agosto 2018
    (Universidad Privada Norbert Wiener, 2023-05-23) Calsina Ramos, Marina Erika; Huamán Cucho, Yvonne Bertha; Lizano Gutiérrez, Jesús Víctor
    The general objective of this study was to detect the presence of heavy metals using the Graphite Furnace Atomic Absorption Spectrophotometry method for lead and cadmium, and Hydride Generation Atomic Absorption Spectrophotometry for arsenic in samples of dietary supplements of plant origin, including artichoke, camu camu, flaxseed, and tocosh, sold at the "Natural World Market" in the district of Cercado de Lima. Results: For arsenic, a minimum value of 0.11 mg/Kg was found in flaxseed supplements and a maximum value of 1.68 mg/Kg in artichoke supplements. For cadmium, a minimum value of 0.11 mg/Kg was found in flaxseed supplements and a maximum value of 0.63 mg/Kg in camu camu supplements. For lead, a minimum value of 0.18 mg/Kg was found in camu camu supplements and a maximum value of 1.28 mg/Kg in tocosh supplements. Additionally, the average values of arsenic, cadmium, and lead in the analyzed dietary supplement samples were 0.68 mg/Kg, 0.32 mg/Kg, and 0.57 mg/Kg, respectively. The methodology used USP 40 as a reference. Based on permissible limits, it was concluded that for arsenic, 12.5% of the samples exceeded the 1.5 mg/Kg limit, for cadmium, 25% of the samples exceeded the 0.5 mg/Kg limit, and for lead, 18.75% of the samples exceeded the 1.0 mg/Kg limit.