Comparative procedures for the sample decomposition of rocks used in organic agriculture and the determination of Cu, Fe, Mn, and Zn by FAAS
Contribuinte(s) |
Universidade Estadual Paulista (UNESP) |
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Data(s) |
20/05/2014
20/05/2014
01/11/2004
|
Resumo |
The aim of this work was to develop an appropriate sample preparation procedure for the flame atomic absorption spectrometry determination of Cu, Fe, Mn, and, Zn in rocks used in organic agriculture as a source of macro- and micronutrients.Six different procedures were evaluated and are classified into three groups: (a) pressure digestion system with Teflon bombs, (b) conventional wet digestion in a digester heating block, and (c) closed microwave system with pressure and temperature control.Two standard reference materials and two commercial samples were analyzed. It was found that the closed microwave system required low reagent consumption, less time, and resulted in low contamination. |
Formato |
233-237 |
Identificador |
Atomic Spectroscopy. Shelton: Perkin-elmer Corp, v. 25, n. 6, p. 233-237, 2004. 0195-5373 http://hdl.handle.net/11449/31433 WOS:000225746100001 |
Idioma(s) |
eng |
Publicador |
Perkin-elmer Corp |
Relação |
Atomic Spectroscopy |
Direitos |
closedAccess |
Tipo |
info:eu-repo/semantics/article |