BACKGROUND: Bioaccumulation of toxic metals in the population is associated with adverse health effects. Although some elements are essential for humans, high levels of exposure can be dangerous. OBJECTIVE: To describe the levels of Inorganic Arsenic (AsIn), Cadmium (Cd), Chromium (Cr), and Mercury (Hg) ...
Arsénico/análisis,
Arsénico/sangre,
Arsénico/orina,
Cadmio/análisis,
Cadmio/sangre,
Cadmio/orina,
Chile,
Cromo/análisis,
Cromo/sangre,
Cromo/orina,
Exposición a Riesgos Ambientales/efectos adversos,
Exposición a Riesgos Ambientales/análisis,
Monitoreo del Ambiente,
Plomo/análisis,
Plomo/sangre,
Mercurio/análisis,
Mercurio/sangre,
Mercurio/orina,
Metales Pesados/análisis,
Metales Pesados/sangre,
Metales Pesados/orina
Abstract Six sample preparation procedures were evaluated for selective extraction of Cr(VI) from commercial samples of chromium oxide green (Cr2O3) pigments prior to formation of its diphenylcarbazone complex [CrDPCO]- for determination by visible spectrophotometry: (I) water-soluble chromium; (II) EPA ...
ABSTRACT Objective In this paper, we studied three different types of ordinary sports supplements containing whey protein: whey protein-based ones, hypercaloric ones, and protein bars. Methods A sample preparation procedure was studied employing microwave-assisted wet digestion in order to determine th...
According to Anvisa risk rating, hypodermic needles offer medium risk to the user's health. This study discussed the importance of the corrosion resistance test in tubes of hypodermic needles, in the product quality control. A review of cannulas of hypodermic needles was carried out according to ISO 9626...
The biotechnology sector is continually seeking sustainable and more economical bioprocesses. Fermentation media produced with cheap components or wastes reduce production costs. Moreover, if wastes are used, they contribute to avoid environmental pollution. In this work, microbial growth media based on ...
Objetivo. Determinar las concentraciones de plomo, cadmio y cromo, y establecer su posible asociación con diferentes factores sociodemográficos. Material y métodos. Se seleccionó una muestra representativa de 100 estudiantes de posgrado de la Facultad de Odontología de la Universidad Nacional Autón...
Se evalua el riesgo de contaminación por cromo, hierro, manganeso y sulfatos en especies marinas de consumo habitual, procedentes de la Bahía de San Nicolas de Marcona, resultado de la actividad minera que se realiza en la zona. El cromo, hierro y manganeso se determinó por espectrofotometría de abso...
Cromo/aislamiento & purificación,
Cromo/análisis,
Hierro/aislamiento & purificación,
Hierro/análisis,
Manganeso/aislamiento & purificación,
Manganeso/análisis,
Sulfatos/aislamiento & purificación,
Sulfatos/análisis,
Agua de Mar/análisis,
Agua de Mar/química,
Contaminantes del Agua
