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BIBTEX RIS

GFAAS determination of mercury in muscle samples of fish from Amazon, Brazil

2013; Elsevier BV; Volume: 141; Issue: 3 Linguagem: Inglês

10.1016/j.foodchem.2013.05.008

ISSN

1873-7072

Autores

Paula Martin de Moraes, Felipe André dos Santos, Bruna Cavecci, Cilene C. F. Padilha, José Cavalcante Souza Vieira, Paulo S. Roldan, Pedro de Magalhães Padilha,

Tópico(s)

Heavy Metal Exposure and Toxicity

Resumo

In the present study, a simple, rapid and sensitive method was developed for the determination of mercury concentrations in the muscle tissue of fish from the Brazilian Amazon using graphite furnace atomic absorption spectrometry (GFAAS) following acid mineralization of the samples in an ultrasonic cold water bath. Using copper nitrate as a chemical modifier in solution and sodium tungstate as permanent modifier, we were able to attain thermal stabilization of the mercury up to the atomisation temperature of 1600 °C in the GFAAS assay. The calculated limits of detection (LOD) and quantification (LOQ) were 0.014 and 0.047 mg kg(-1), respectively.

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