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- W2816176532 abstract "espanolLa presencia de metales pesados en moluscos bivalvos implica un grave problema para la salud de los consumidores de este tipo de alimento. Por ello, el objetivo de la investigacion fue determinar la presencia de metales pesados enAnadara tuberculosa, moluscode importancia comercial en Puerto Bolivar, Ecuador. El metodo utilizado para cuantificar la concentracion de metales pesados fue la espectrofotometria de absorcion atomica, se determino la concentracion de seis metales: Plomo (Pb), Arsenico (As), Mercurio (Hg), Cadmio (Cd), Cromo (Cr) y Cobalto (Co). Los valores promedios obtenidos, expresados en mg.kg-1 fueron: Pb (7,52 ± 0,46); As (1,55 ± 0,14); Hg (364,38 ± 91, 39); Cd (1,68 ± 0,28); Cr (3,89 ± 1,82) y Co (2,71 ± 0,34 en Anadara tuberculosa. Los resultados muestran que el Pb, As, Cd, y Hg superan los limites maximos permisibles, el Mercurio supera en mas de 100 veces el valor limite. La talla mas pequena (3-4 cm) del molusco en estudio posee la capacidad de bioacumular mayor concentracion de Pb, Cd y Cr. EnglishThe presence of heavy metals in bivalve molluscs implies a serious problem for the consumers health of this type of food. Therefore, the objective of the present investigation was to determine the presence of heavy metals in Anadara tuberculosa, mollusc of commercial importance at Puerto Bolivar, Ecuador. Atomic absorption spectrophotometry was the method used to quantify the concentration of heavy metals. The concentration of six metals was determined: lead (Pb), arsenic (As), mercury (Hg), cadmium (Cd), chromium (Cr) and cobalt (Co). The average values obtained, expressed in mg.kg-1 were: Pb (7.52 ± 0.46); As (1.55 ± 0.14); Hg (364.38 ± 91.39); Cd (1.68 ± 0.28); Cr (3,89 ± 1,82) and Co (2,71 ± 0,34 in A. tuberculosa The results show that Pb, As, Cd, and Hg exceed the maximum permissible limits, mercury exceeds by more than 100 times the limit value. The smaller size (3-4 cm) studied mollusc, has the capacity to bioaccumulate higher concentration of Pb, Cd and Cr." @default.
- W2816176532 created "2018-07-19" @default.
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- W2816176532 date "2017-01-01" @default.
- W2816176532 modified "2023-09-24" @default.
- W2816176532 title "Cuantificación de metales pesados en Anadara tuberculosa(Mollusca bivalvia) del estero Huaylá de Puerto Bolívar, por espectrofotometría de absorción atómica" @default.
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