Determination of Nickel in Fuel Ethanol Using a Carbon Paste Modified Electrode Containing Dimethylglyoxime

Tartarotti, Fernando Oliveira; Oliveira, Marcelo Firmino de; Balbo, Valdir Roberto; Stradiotto, Nelson Ramos

doi:10.1007/s00604-006-0638-2

Cited by 27 publications

(14 citation statements)

References 17 publications

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“…O procedimento descrito emprega um eletrodo de pasta de carbono, modificado com dimetilglioxima, utilizado como agente complexante para esta espécie metálica. 56 A utilização das melhores condições de trabalho permite a sua detecção em etanol, em valores de concentração entre 1x10 -8 a 7x10 -8 mol L -1 .…”

Section: Aplicação De Técnicas Eletroquímicasunclassified

A Brief Review about some Aspects of Alcohol Vehicle Fuel and Quantitative Analysis of Chemical Species in this Energy Matrix

2016

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This review shows several issues and a brief discussion of the Brazilian energy matrix, developed as a source of automotive fuel based on the culture of sugar cane with subsequent process of fermentation for ethanol production. Although ethanol is also present as an additive to gasoline consumed in Brazil, we intend to deal only on the anhydrous ethanol, the genuinely Brazilian fuel. It is scope of this text to present the various chemical constituents present in this energy matrix as well as, listing the main analytical methods used for monitoring and quantification of organic substances, metals and some anions, commonly found in ethanol.Keywords: Ethanol vehicle; clean fuel; heavy metals. ResumoEste texto de revisão apresenta vários aspectos, e uma breve discussão sobre a matriz energética brasileira, desenvolvida como fonte de combustível automotivo baseado na cultura da cana de açúcar, com posterior processo de sua fermentação para a produção de etanol. Embora o álcool etílico também esteja presente, como aditivo da gasolina consumida no território brasileiro, pretende-se discorrer somente sobre o etanol anidro, ou seja, o combustível genuinamente brasileiro. É escopo deste texto apresentar os vários constituintes químicos presentes nesta matriz energética, bem como, elencar as principais metodologias analíticas empregadas para o monitoramento e quantificação de substâncias orgânicas, de metais e de alguns ânions, comumente encontrados no álcool etílico.Palavras-chave: Etanol veicular; combustível limpo; metais pesados.

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Section: Aplicação De Técnicas Eletroquímicasunclassified

A Brief Review about some Aspects of Alcohol Vehicle Fuel and Quantitative Analysis of Chemical Species in this Energy Matrix

2016

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“…Moreover these binder agents present low cost and they are easily manipulated allowing preparing the electrodes in a fast, simple and inexpensive way. Solid paraffin-based CPEs were totally stable in ethanol media allowing the quantification of Cu 2+ [127] and Ni 2+ [133] [132], dimethylglyoxime for quantification of Ni 2+ [134] and 1,10-ortophenantroline for quantification of Fe 3+ [135]. All these examples use conventional CPEs; therefore their use was restricted to mixtures ethanol fuel: aqueous electrolyte solution which however has no seriously compromised their overall analytical performance.…”

Section: Wwwintechopencommentioning

confidence: 99%

Electrochemical Methods in Analysis of Biofuels

Santos¹,

Takeuchi²,

Fenga³

et al. 2011

Applications and Experiences of Quality Control

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“…For the calorimetric determination of Ni contents, researchers used dimethylglyoxime diethyldithiocarbamates as reagents . It was also reported that the stability and the amount of the complex formed can be improved by adjusting the pH level.…”

Section: Introductionmentioning

confidence: 99%

Colorimetric Methods for Determining Fe, V, and Ni Contents in Coke and Anodes

et al. 2019

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Prebaked carbon anodes are used in the electrolytic production of aluminum. They are made of petroleum coke, butts, recycled anodes, and coal tar pitch. The anode quality, which depends on the raw material quality and the production conditions, has an important impact on the cell performance. Metallic impurities (V, Ni, and Fe) found in cokes and anodes increase the carbon consumption by catalyzing the air and CO 2 reactivities. In turn, this increases the production cost, energy consumption, and the emission of greenhouse gases. The current methods for detecting the metallic impurities in carbon are time consuming and require intensive sample preparation, skilled personnel, and costly reagents. In this work, simple, rapid, and effective tools were developed using colorimetric methods.

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Determination of Nickel in Fuel Ethanol Using a Carbon Paste Modified Electrode Containing Dimethylglyoxime

Cited by 27 publications

References 17 publications

A Brief Review about some Aspects of Alcohol Vehicle Fuel and Quantitative Analysis of Chemical Species in this Energy Matrix

A Brief Review about some Aspects of Alcohol Vehicle Fuel and Quantitative Analysis of Chemical Species in this Energy Matrix

Electrochemical Methods in Analysis of Biofuels

Colorimetric Methods for Determining Fe, V, and Ni Contents in Coke and Anodes

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