Examinando por Materia "Cobalt"

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    Determinación cuantitativa de arsénico, níquel y cobalto en las tintas para tatuaje corporal comercializados en Lima Metropolitana durante el periodo enero–febrero 2018
    (Universidad Privada Norbert Wiener, 2018-07-05) Idrogo Delgado, César Olmedo; Montenegro Diaz, Evelyn Marianela; Lizano Gutiérrez, Jesús Víctor
    In this research, the concentrations of Arsenic, Nickel, and Cobalt were determined in samples of tattoo inks marketed in Metropolitan Lima, in order to establish whether these were within the permissible concentrations according to EPA 0128: Environmental Protection Authority Guidelines for Tattooing and Permanent Makeup. A total of 15 samples from different brands of tattoo inks marketed in Metropolitan Lima were collected, with black, red, and blue selected as the colors most frequently used in tattoo practice. The metals were quantified by Graphite Furnace Atomic Absorption Spectrophotometry. The average levels of Arsenic, Nickel, and Cobalt in the blue ink samples were 0.12, 0.20, and 30.0 ppm, respectively. The average levels of Arsenic, Nickel, and Cobalt in the black ink samples were 0.13, 14.29, and 0.49 ppm, respectively, while the average levels of Arsenic, Nickel, and Cobalt in the red ink samples were 0.23, 0.16, and 0.45 ppm, respectively. The values found were compared with the parameters established by EPA 0128.