Identification and quantification of heavy metal in mineral salt commercialized in São Paulo State, Brazil

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Wilmar Sachetin Marçal
Laurenil Gaste
Paulo Eduardo Pardo
Otávio Campos Neto
Marcos Roberto Lopes do Nascimento

Abstract

Objective: To quantify the element lead in different mineral formulations traded in the State of São Paulo. Material and Method: Samples of mineral salt were collected directly from the stock of shops throughout the years of2001 and 2003. The samples, with approximately 200 grams, were analyzed using the anatomic absorption spectrophotometry technique, in the Laboratory located in the city of Poços de Caldas, MG, belonging to the Comissão Nacional de Energia Nuclear (CNEN) - (National Committee of Nuclear Energy). Results: In 24 samples analyzed, 16 presented values higher than the 10-ppm recommended as the maximum acceptable value. Figures ranged from 3.0 to 156 mg kg- I . Highest result was found in a sample of salt collected in the city of Santo Anastácio, SP Conclusions: Results have shown the need of monitoring procedures before the manufacturers, as some mineral mixtures may be dangerous, with possibility of inorganic lead toxic cumulative effects in cattle.

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How to Cite
MARÇAL, W. S.; GASTE, L.; PARDO, P. E.; CAMPOS NETO, O.; DO NASCIMENTO, M. R. L. Identification and quantification of heavy metal in mineral salt commercialized in São Paulo State, Brazil. Revista de Educação Continuada em Medicina Veterinária e Zootecnia, v. 6, n. 1/3, p. 103-109, 1 Jan. 2003.
Section
ANIMAL NUTRITION AND PRODUCTION