Determinación cuantitativa de plomo y cadmio en zumos de naranja de venta ambulatoria en Cercado de Lima marzo – julio 2015
Date
2017-07-06
Journal Title
Journal ISSN
Volume Title
Publisher
Universidad Inca Garcilaso de la Vega
Abstract
La presente investigación se llevó a cabo para determinar la concentración de plomo y cadmio en zumos de naranja (Citrus sinensis) expendidas por ambulantes en Cercado de Lima, periodo de Marzo – Julio 2015. Para poder realizar el trabajo de investigación se recolectaron 23 muestras de zumos de naranja, y se determinó la concentración de metales pesados (plomo y cadmio) por el método de Espectrofotometría de Absorción Atómica con Horno de Grafito. El análisis se realizó en el laboratorio CETOX. Debido a que la Normativa Técnica Peruana no establece valores de concentración máxima y mínima permitido de metales para zumos de naranja, se utilizaron como referencia valores establecidos por organizaciones internacionales como Codex Alimentarius, Reglamento Técnico de MERCOSUR, y el Reglamento de la Unión Europea. Como resultado del análisis obtuvimos las siguientes concentraciones de plomo: media 0,3321 ppm, valor mínimo 0,17 ppm y valor máximo 0,62 ppm; asimismo las concentraciones de cadmio: media 0,1456 ppm, valor mínimo 0,02 ppm y valor máximo 0,26 ppm. Valores que superan el rango de concentración permitidos por las entidades de referencia. De acuerdo a los resultados concluimos que las muestras de zumos de naranja (Citrus sinensis) presentan concentraciones elevadas de plomo y cadmio.
This research was conducted to determine the concentration of lead and cadmium in orange juice (Citrus sinensis) expended by street in Cercado de Lima, period March to July 2015. For the research work to carry out 23 orange juice samples were collected, and the concentration of heavy metals (lead and cadmium) was determined by the method of Atomic Absorption Spectrophotometry in Graphite Furnace. The analysis was performed in the laboratory CETOX. Due to the technical regulations Peruvian does not establish maximum concentration values and minimum allowable metals for orange juice were used as values reference established by international organizations such as Codex Alimentarius, Technical Regulations of MERCOSUR, and the regulations of the European Union. As a result of the analysis we obtained the following concentrations of lead: average 0.3321 ppm, 0.17 ppm minimum and maximum value 0.62 ppm; also cadmium concentrations: average 0.1456 ppm, 0.02 ppm minimum and maximum value 0,26 ppm. Values over the concentration range allowed by reference entities. According to the results we conclude that samples of orange juice (Citrus sinensis) have high concentrations of lead and cadmium.
This research was conducted to determine the concentration of lead and cadmium in orange juice (Citrus sinensis) expended by street in Cercado de Lima, period March to July 2015. For the research work to carry out 23 orange juice samples were collected, and the concentration of heavy metals (lead and cadmium) was determined by the method of Atomic Absorption Spectrophotometry in Graphite Furnace. The analysis was performed in the laboratory CETOX. Due to the technical regulations Peruvian does not establish maximum concentration values and minimum allowable metals for orange juice were used as values reference established by international organizations such as Codex Alimentarius, Technical Regulations of MERCOSUR, and the regulations of the European Union. As a result of the analysis we obtained the following concentrations of lead: average 0.3321 ppm, 0.17 ppm minimum and maximum value 0.62 ppm; also cadmium concentrations: average 0.1456 ppm, 0.02 ppm minimum and maximum value 0,26 ppm. Values over the concentration range allowed by reference entities. According to the results we conclude that samples of orange juice (Citrus sinensis) have high concentrations of lead and cadmium.
Description
Keywords
Plomo, Cadmio, Zumos, Naranja (Citrus sinensis), Reglamento técnico de MERCOSUR, Espectrofotometría, Reglamento de la Unión Europea, Codex Alimentarius, Lead, Cadmium, Juice, Orange (Citrus sinensis), MERCOSUR technical regulations, MERCOSUR technical regulations