A thermostated electrochemical flow cell with a coupled bismuth film electrode for square-wave anodic stripping voltammetric determination of cadmium(II) and lead(II) in natural, wastewater and tap water samples

Santos, Vagner Bezerra dos; Fava, Elson Luiz; Curi, Newton Sá de Miranda; Faria, Ronaldo C.; Fatibello‐Filho, Orlando

doi:10.1016/j.talanta.2014.03.015

Cited by 32 publications

(19 citation statements)

References 32 publications

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“…Moreover, BiFEs present some advantages over mercury film electrodes: Bi is by far less toxic than Hg and, therefore, BiFEs are environmental‐friendly electrodes, BiFEs are less susceptive to interferences from dissolved oxygen than mercury electrodes 9, 44 and finally BiFEs can be used in both acidic or strongly alkaline media 47, making them more versatile than mercury film electrodes. Therefore, BiFEs are the best alternative to mercury for heavy metals determination by ASV, which is demonstrated by the large number of works using BiFEs for metal ions determination 4, 5, 10–14, 22, 34.…”

Section: Introductionmentioning

confidence: 99%

Combining Alkaline Extraction and in Situ Plated Bismuth Film for Reliable Quantification of Zn in Multivitamin Formulations

2015

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In this work a bismuth film electrode (BiFE) plated in situ onto glassy carbon was used to quantify Zn2+ in multivitamin formulation samples by square wave anodic stripping voltammetry. For partially water‐soluble multivitamin tablets, an alkaline extraction with 1.0 mol L−1 NaOH aqueous solution was adopted. This procedure was simple, fast and efficient to extracting Zn from sample matrix. Moreover, this procedure was able to make the method less susceptible to interferences from Cu2+, since it remains at extracting vessel as insoluble Cu(OH)2. For fully water‐soluble effervescent tablets, sample pretreatment was not required.

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Section: Introductionmentioning

confidence: 99%

Combining Alkaline Extraction and in Situ Plated Bismuth Film for Reliable Quantification of Zn in Multivitamin Formulations

2015

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“…Nowadays, BiFEs and other bismuth-based electrodes are used for the quantification of metals and organic compounds in a variety of matrices [3][4][5][6][7][8][9][10][11][12].…”

Section: Introductionmentioning

confidence: 99%

Electrochemical sensor based on bismuth-film electrode for voltammetric studies on vitamin B2 (riboflavin)

Sá

Silva

Jost

et al. 2015

Sensors and Actuators B: Chemical

102

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“…A sensitive flow electrochemical detection system has been constructed with a 3D-printed thin-layer flow featuring a novel screen-printed flow-field shaped solid electrode covered with a Bi film with improved sensitivity for Pb detection [ 76 ]. Flow batch analysis [ 77 ], SIA [ 60 ], and multi-syringe flow systems [ 78 ] have also been reported.…”

Section: Spes Modified With Bimentioning

confidence: 99%

Screen-Printed Electrodes Modified with “Green” Metals for Electrochemical Stripping Analysis of Toxic Elements

Economou

2018

Sensors

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This work reviews the field of screen-printed electrodes (SPEs) modified with “green” metals for electrochemical stripping analysis of toxic elements. Electrochemical stripping analysis has been established as a useful trace analysis technique offering many advantages compared to competing optical techniques. Although mercury has been the preferred electrode material for stripping analysis, the toxicity of mercury and the associated legal requirements in its use and disposal have prompted research towards the development of “green” metals as alternative electrode materials. When combined with the screen-printing technology, such environment-friendly metals can lead to disposable sensors for trace metal analysis with excellent operational characteristics. This review focuses on SPEs modified with Au, Bi, Sb, and Sn for stripping analysis of toxic elements. Different modification approaches (electroplating, bulk modification, use of metal precursors, microengineering techniques) are considered and representative applications are described. A developing related field, namely biosensing based on stripping analysis of metallic nanoprobe labels, is also briefly mentioned.

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A thermostated electrochemical flow cell with a coupled bismuth film electrode for square-wave anodic stripping voltammetric determination of cadmium(II) and lead(II) in natural, wastewater and tap water samples

Cited by 32 publications

References 32 publications

Combining Alkaline Extraction and in Situ Plated Bismuth Film for Reliable Quantification of Zn in Multivitamin Formulations

Combining Alkaline Extraction and in Situ Plated Bismuth Film for Reliable Quantification of Zn in Multivitamin Formulations

Electrochemical sensor based on bismuth-film electrode for voltammetric studies on vitamin B2 (riboflavin)

Screen-Printed Electrodes Modified with “Green” Metals for Electrochemical Stripping Analysis of Toxic Elements

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