Influência do material e volume do porta-amostra na determinação termogravimétrica do teor de cinzas em mel Influence of material and volume of the sample holder on the thermogravimetric determination of ash contents in honey

The results suggest that the two variables studied are significant and that they may be independently optimized. The material of the sample holder interferes with the incineration process only due to the amount of heat transfered. The sample holder volume aids diffusion of the atmosphere to the hone...

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Veröffentlicht in:Química nova 2005-08, Vol.28 (4), p.713-715
Hauptverfasser: Maria Lurdes Felsner, Roy Edward Bruns, Jivaldo do Rosário Matos, Cristiane Bonaldi Cano, Lígia Bicudo Almeida-Muradian
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Sprache:eng
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Zusammenfassung:The results suggest that the two variables studied are significant and that they may be independently optimized. The material of the sample holder interferes with the incineration process only due to the amount of heat transfered. The sample holder volume aids diffusion of the atmosphere to the honey sample, minimizing the foaming effect. According to the results, for the thermogravimetric analysis of ash content in honey, sample holders of platinum or alumina of 150 µL are indicated.
ISSN:0100-4042
1678-7064
DOI:10.1590/S0100-40422005000400026