Navegação Journal of the Brazilian Chemical Society por autor "Amorim Filho, Volnei R."

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Comparative studies of the sample decomposition of green and roasted coffee for determination of nutrients and data exploratory analysis

Amorim Filho, Volnei R.; Politoa, Wagner L.; Gomes Neto, José A. (Sociedade Brasileira de Química, 2007)

The contents of some nutrients in 35 Brazilian green and roasted coffee samples were determined by flame atomic absorption spectrometry (Ca, Mg, Fe, Cu, Mn, and Zn), flame atomic emission photometry (Na and K) and Kjeldahl ...