1995
DOI: 10.1080/00032719508000362
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The Effect of Organic Substances and Electrochemical Elimination of it for Cathodic Stripping Voltammetric Determination of Manganese (II) in Natural Waters

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Cited by 9 publications
(7 citation statements)
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“…Some works have been reported in the literature [16][17][18][19][20][21][22] for manganese determination in different sample matrices by electrochemical techniques. Manganese measurements by cathodic stripping voltammetry are based on the formation of metal oxides (MnO 2 ) which absorb on the carbon electrode surface followed by metal reduction.…”
Section: Fundamentals Of the Methodsmentioning
confidence: 99%
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“…Some works have been reported in the literature [16][17][18][19][20][21][22] for manganese determination in different sample matrices by electrochemical techniques. Manganese measurements by cathodic stripping voltammetry are based on the formation of metal oxides (MnO 2 ) which absorb on the carbon electrode surface followed by metal reduction.…”
Section: Fundamentals Of the Methodsmentioning
confidence: 99%
“…16 Additional advantage of electroanalysis is the possibility of direct detection of labile metallic species in solution as demonstrated in natural waters. [17][18][19] Considering tea samples, some organic species, such as polyphenolic compounds, form strong and non-electroactive complexes with manganese, 17 while a small fraction of manganese is free (labile) in solution and bioavailable when tea is consumed.…”
Section: Voltammetric Determination Of Free and Total Manganese In Tementioning
confidence: 99%
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“…Di e Zhang 14 obtiveram resultados similares utilizando eletrodo de carbono ví-treo. Já Viltchinskaia et al 15 e Labuda et al 16 reportaram o uso de eletrodos de grafite nas análises de manganês empregando CSV, com limites de detecção da ordem de 0,55 μg L -1 .…”
Section: Introductionunclassified
“…Di e Zhang 14 obtiveram resultados similares utilizando eletrodo de carbono ví-treo. Já Viltchinskaia et al 15 e Labuda et al 16 reportaram o uso de eletrodos de grafite nas análises de manganês empregando CSV, com limites de detecção da ordem de 0,55 μg L -1 .Recentemente novos materiais para eletrodo de trabalho têm sido investigados para aplicações eletroanalíticas, principalmente para evitar o uso de mercúrio (devido a sua toxicidade) 17 . É desejável que tais eletrodos sejam facilmente construídos, apresentem superfícies não suscetíveis a envenenamento ou contaminação, possibilitem análises reprodutíveis, possuam alta seletividade e sensibilidade, apresentem resposta em tempo real, entre outros.…”
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