2001
DOI: 10.1590/s0100-40422001000600009
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Emprego da amostragem de suspensão na determinação de Cu e Zn em lapa antártica e Ni em sedimento de rio por espectrometria de absorção atômica com chama

Abstract: Recebido em 29/8/00; aceito em 27/4/01 USE OF SLURRY SAMPLING IN THE DETERMINATION OF Cu AND Zn IN ANTARCTIC LIMPETS AND Ni IN RIVER SEDIMENT BY FLAME ATOMIC ABSORPTION SPECTROMETRY. In order to demonstrate the feasibility of slurry sampling for environmental studies, different methodologies were developed for Cu and Zn in antarctic limpets and Ni in river sediment with FAAS detection. Studies focusing particle size, acid concentration, slurry stability, selectivity, among others were carried out in order to d… Show more

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Cited by 5 publications
(1 citation statement)
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“…Despite the fact of the better explanation for the interference observed, we try to overcome this problem and improve the recoveries, using ammonium chloride as releasing agent 31,32 . It increases the volatility of metals, since their ammonium salts decompose at temperature lower than 400 0 C. This procedure was already successfully applied in a previous work 34 .…”
Section: Effect Of Nitric Acid Concentrationmentioning
confidence: 91%
“…Despite the fact of the better explanation for the interference observed, we try to overcome this problem and improve the recoveries, using ammonium chloride as releasing agent 31,32 . It increases the volatility of metals, since their ammonium salts decompose at temperature lower than 400 0 C. This procedure was already successfully applied in a previous work 34 .…”
Section: Effect Of Nitric Acid Concentrationmentioning
confidence: 91%