2000
DOI: 10.1590/s0100-40422000000200008
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Determinação direta de crômio em açúcar e leite por espectrometria de absorção atômica com atomização eletrotérmica em forno de grafite

Abstract: Recebido em 26/1/99; aceito em 26/7/99 DIRECT DETERMINATION OF CHROMIUM IN SUGAR AND MILK USING GRAPHITE FUR-NACE ATOMIC ABSORPTION SPECTROMETRY.A fast and direct method for the determination of Cr in milk and cane sugar suspensions using graphite furnace atomic absorption spectrometry with Zeeman-effect background correction is described. No sample pre-treatment was necessary, minimizing the risk of contamination. The concentration of chromium in cane sugar was evaluated using Cr reference solutions prepared … Show more

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Cited by 7 publications
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“…This mass value is slightly higher and allowed for a wider working range up to 50.0. By comparison, Quinaia and Nobrega (33) determined Cr in milk by GFAAS obtaining a characteristic mass of 7.8 pg. The relative standard deviations obtained by the authors of this study for three different concentrations were within acceptable values of precision, not exceeding 11.8% and 7.8 pg.…”
Section: Figures Of Meritmentioning
confidence: 99%
“…This mass value is slightly higher and allowed for a wider working range up to 50.0. By comparison, Quinaia and Nobrega (33) determined Cr in milk by GFAAS obtaining a characteristic mass of 7.8 pg. The relative standard deviations obtained by the authors of this study for three different concentrations were within acceptable values of precision, not exceeding 11.8% and 7.8 pg.…”
Section: Figures Of Meritmentioning
confidence: 99%