Abstract:Capão do Leão -RS, BrasilRecebido em 21/12/2015; aceito em 10/05/2016; publicado na web em 13/07/2016 METALS DETERMINATION BY ATOMIC SPECTROMETRY TECHNIQUES IN COAL AND ASH SAMPLES USING RESPONSE SURFACE METHODOLOGY. This paper describes the method optimization using response surface methodology for Cu, Fe, Zn and Na determinations in coal and ash samples by spectrometry techniques. The sample preparation was performed using a recirculation system adapted in the digestion tubes. This system allowed increase of… Show more
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