Affiliation:
1. Institute of Physics, Federal University of Rio Grande do Sul, Av. Bento Gonçalves, 9500, CP 15051, CEP 91501-970, Porto Alegre, RS, Brazil
Abstract
In this paper, a Brazilian roasted ground coffee from a popular brand was analyzed using particle-induced X-ray emission (PIXE). The elemental analysis identified elements such as Mg, Al, Si, P, S, K, Ca, Ti, Mn, Fe, Cu, Zn and Rb. While K, Mg and P are major elements, Mn, Fe, Zn and Rb were found in trace amounts. The presence of rubidium as a trace element in the samples is discussed in view of its presence in Brazilian coffee, soil and other beverages.
Publisher
World Scientific Pub Co Pte Lt
Cited by
1 articles.
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