2003
DOI: 10.1590/s0100-46702003000100010
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Estudo espectro eletroquímico de sistemas estruturados argila-corante

Abstract: IntroduçãoArgilas são minerais de ocorrência natural no solo e apresentam características físico-químicas peculiares. São formadas por pequenos cristais, quase sempre na forma de plaquetas hexagonais, que se aglutinam para formar conglomerados. Quando em suspensão, em água, permite a separação de suas camadas lamelares e a intercalação de íons metálicos (metais pesados) e moléculas (solvente, moléculas orgânicas, etc.) [8]. O entendimento das propriedades de sistemas organizados, tais como: a formação de siste… Show more

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Cited by 13 publications
(2 citation statements)
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“…Accordingly, studies [13][14][15][16][17] have suggested a simple and affordable method that can be used for the determination of trace amounts of Fe(III) ions in solution by an electrochemical method. Several studies have shown the application of modified electrodes for metal ions determination in aqueous solutions, some of them using a modification process with clays and organoclays [18][19][20][21][22][23][24][25].…”
Section: Introductionmentioning
confidence: 99%
“…Accordingly, studies [13][14][15][16][17] have suggested a simple and affordable method that can be used for the determination of trace amounts of Fe(III) ions in solution by an electrochemical method. Several studies have shown the application of modified electrodes for metal ions determination in aqueous solutions, some of them using a modification process with clays and organoclays [18][19][20][21][22][23][24][25].…”
Section: Introductionmentioning
confidence: 99%
“…Employment of modified electrodes, specifically clays, as proposed in the present study, is a field in constant development, and increasingly new methods of preparation are reported in literature for various matrices [21,[27][28][29][30][31][32][33]. Several studies showed the application of modified electrodes for metal ion determination in aqueous solutions, some of them employing a modification process with clays and organoclays [34][35][36][37][38][39][40][41].…”
Section: Introductionmentioning
confidence: 99%