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Determinação de minerais e metais pesados em açúcar mascavo

31 samples of comercial muscovado sugar were treated to a nitric digestion and minerals and heavy metals were determined by Plasma Emission Spectroscopy. The following ranges of values (mg/Kg) were obtained: aluminium 17,5 - 453,8; barium 0,75 - 13,9; calcium 754,4 - 5432,6; cadmium 0,61 - 4,9; cooper 0,2 - 13,3; iron 29,9 - 488,4; potassium 137,4 - 10835; magnesium 6,2 - 1705,2; manganese 2,1 - 56,2; sodium 13,4 - 1399,5; Phosphor 16,5 - 569,5; mercury 6,3 - 16,2; sulphur 47,86 e 1486,2; strontium 0,9 - 21,2; vanadium 1,5 e 6,9; zink 2,9 - 19,5. Some of these values are higher than the permitted by the Brazilian regulations

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