Evaluación de metales pesados en recursos terapéuticos vegetales de la ciudad de Iquitos

• Autor: Sosa Amay, Frida Enriqueta
• Formato: tesis doctoral
• Fecha de Publicación: 2017
• Institución: Universidad Nacional de Trujillo
• Repositorio: UNITRU-Tesis
• Lenguaje: español
• OAI Identifier: oai:dspace.unitru.edu.pe:20.500.14414/7726
• Enlace del recurso: https://hdl.handle.net/20.500.14414/7726
• Nivel de acceso: acceso abierto
• Materia: Mercurio, Arsénico, Plomo, Cadmio, Plantas medicinales

The concentration of cadmium, lead, mercury and arsenic in the bark of twelve botanical species of the Peruvian Amazon, considered as therapeutic resources, was evaluated by atomic bsorption. Cadmium and lead were determined by flame (SpectrAA, Varian AA 240); Mercury with cold vapor (AAnalyst 300, Perkin Elmer) and arsenic by hydridegeneration (AAnalyst 300, Perkin Elmer). Thelevelsfound in the case of the species: Tynanthus panurensis (clavo huasca), Campsiandra angustifolia (Huacapurana) Abutarufescens (abuta), Anomospermunsp. (achunisanango) and Hymnaea oblongfolia (azucar huayro) exceed the maximum limit sall owed for cadmium. None of the species studied exceeded the limit sall owed for lead. On the otherhand, Brosiun potabile (tamamuri) was the only one of the studied species that exceeds the limit sall owed for mercury. In case of arsenic,allspeciesrecordedconcentrationsabovethemaximumallowedlimits, in a rangebetween 1,7 – 8,19 μg/g. It is concluded that all the vegetal barks studieds howed,higher concentrations of arsenic than all owed, and that50% of them presented a double risk of toxicity due to their high content of cadmium or mercury.