A Cobalt Film Electrode for Nitrite Determination in Natural Water

Soropogui, Koïkoï; Sigaud, Monique; Vittori, O.

doi:10.1002/elan.200704008

Cited by 11 publications

(8 citation statements)

References 34 publications

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“…It is the inspiration as a driving force that had started the new activities in seeking analogues or alternatives to both BiFEs and BiEs. The result of such endeavors is a new family of metallic film electrodes and related configurations, namely: antimony film-and antimony powder-modified electrodes [201 -212], lead film- [213 -218], tin film- [219], gallium film- [220], cobalt film- [221], or even selenium film- [222] plated electrodes. Although almost all these electrodes mean a step back with respect to the "green-chemistry" concept, they may offer particular advantages in some specific applications.…”

Section: Conclusion: Bismuth Electrodes As Attractive and Inspiring Ementioning

confidence: 99%

A Decade with Bismuth‐Based Electrodes in Electroanalysis

et al. 2010

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In this article, the decade of electroanalysis with bismuth-based electrodes is reviewed (with 222 refs.). Emphasis is put on the environmentally friendly ("green") character of bismuth electrodes, their versatility and variability in use, as well as the actual classification of the individual types of electrodes, sensors, and detectors that utilize the unique properties of metallic bismuth. Of particular interest is the genesis of the field, when the respective activities and achievements are monitored year by year over the whole period of 2000 -2009, including the circumstances of the introduction of bismuth-coated electrodes into electrochemical stripping analysis. The review highlights all the significant milestones and break-points that had directed the experimental work around the globe, outlining the present days position of this lively, inspiring, and still highly prospective area. Finally, it provides a special insight into electroanalysis with bismuth electrodes through numerous surveys, summaries, and detailed statistical data obtained by analyzing the accessible literature database.

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Section: Conclusion: Bismuth Electrodes As Attractive and Inspiring Ementioning

confidence: 99%

A Decade with Bismuth‐Based Electrodes in Electroanalysis

et al. 2010

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“…Among many electrode materials, copper is expected to be the most effective material in terms of electroreduction of nitrate and nitrite ions. [15][16][17][18][19][20][21] Indeed, many studies have shown that pretreated and/or modified copper electrodes are effective for the determination of nitrate and nitrite ions. 13,14,[22][23][24][25][26] However, the pretreatments and/or modifications of copper electrodes in the studies seem to be complicated, time consuming and insufficiently sensitive for the determination of nitrate and nitrite ions in natural water samples.…”

Section: Introductionmentioning

confidence: 99%

Simultaneous Voltammetric Determination of Nitrate and Nitrite Ions Using a Copper Electrode Pretreated by Dissolution/Redeposition

Shovon

Hinoue

2010

ANAL. SCI.

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Nitrate and nitrite ions were found to be successfully electroreduced at an in situ electrochemically pretreated copper electrode in acidic media, and their reduction peaks of a cyclic voltammogram were found at two distinct electrode potentials. Cyclic voltammetric experiments revealed a highly sensitive behavior of the pretreated copper electrode upon the electroreduction of nitrate and nitrite ions, and showed that a simultaneous voltammetric determination of the ions was achievable. Differential pulse voltammetry (DPV) was applied to the simultaneous determination. As a result, the detection limits were 0.26 and 0.17 μmol dm -3 for nitrate and nitrite ions, respectively. Simultaneous determinations for real samples (river water) were carried out by DPV at the pretreated copper electrode and spectrophotometry (the Griess method). The determination values obtained by both methods were in a good agreement with each other.

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“…Nitrite can be found in water as a product of organic decomposition of wastes containing organic nitrogen into ammonium, which is then oxidized to nitrite and nitrate [1][2][3]. These processes may occur in treatment plants of water, the water distribution system and in natural waters.…”

Section: Introductionmentioning

confidence: 99%

“…This anion is an important precursor of nitrosamines, which are potential carcinogens responsible for potentially fatal blood disorder in infants under six months of age [4][5][6]. For this reason, the World Health Organization (WHO) recommends that drinking water does not contain nitrite in concentrations above 1 mg L À1 (NO 2 À ÀN) [1]. It is therefore an important challenge for environmental applications the development of simple, rapid and inexpensive analytical methods for the determination of nitrite at low concentrations.…”

Section: Introductionmentioning

confidence: 99%

Activated Copper Cathodes as Sensors for Nitrite Analysis

et al. 2010

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The increased surface area of copper electrodes upon applying a suitable potential protocol was characterized by atomic force microscopy images. Scanning electrochemical microscopy was used to demonstrate the enhanced reactivity of the generated surface. The modified electrode showed excellent catalytic activity towards nitrite reduction in acidic medium (pH 2). This new platform was used in the development of a fast and simple voltammetric method for nitrite determination. Commercial and rainwater spiked samples were analyzed and the data showed an excellent agreement with those obtained with a reference spectrophotometric method (Griess reaction) at a confidence level of 95 % (Students t-test).

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A Cobalt Film Electrode for Nitrite Determination in Natural Water

Cited by 11 publications

References 34 publications

A Decade with Bismuth‐Based Electrodes in Electroanalysis

A Decade with Bismuth‐Based Electrodes in Electroanalysis

Simultaneous Voltammetric Determination of Nitrate and Nitrite Ions Using a Copper Electrode Pretreated by Dissolution/Redeposition

Activated Copper Cathodes as Sensors for Nitrite Analysis

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