2001
DOI: 10.1590/s0366-69132001000300004
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Tratamento para obtenção de TaC em superfície de grafite. Parte II: eletrodeposição em meio de fluoretos fundidos

Abstract: A espectrometria de absorção atômica com atomização eletrotérmica em forno de grafite, é um método analítico que apresenta alta sensibilidade de detecção. Muitos analistas realizam pré-tratamentos nos tubos de grafite de maneira a minimizar interferên-cias durante a análise; estes pré-tratamentos consistem na formação de carbeto na superfície do tubo [1].A viabilidade da eletrodeposição de metais refratários em meio

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“…Similarly, lots of work have been published with the surface of graphite tube modified, mainly covered with refractory carbides that, besides improving atomization conditions, increases considerable the life cycle of the tube. Works have been published for the formation of refractory carbides and tubes and graphite platforms by using different methodologies and proving the efficiency through physical analyses (Izário Filho et al, 2001a, 2001b, 2001c. Direct solids sampling can be realized in flame AAS but innovation especially occurs in the case of electrothermal atomization.…”
Section: New Tendenciesmentioning
confidence: 99%
“…Similarly, lots of work have been published with the surface of graphite tube modified, mainly covered with refractory carbides that, besides improving atomization conditions, increases considerable the life cycle of the tube. Works have been published for the formation of refractory carbides and tubes and graphite platforms by using different methodologies and proving the efficiency through physical analyses (Izário Filho et al, 2001a, 2001b, 2001c. Direct solids sampling can be realized in flame AAS but innovation especially occurs in the case of electrothermal atomization.…”
Section: New Tendenciesmentioning
confidence: 99%