Simultaneous determination of nickel(II) and cobalt(II) by square wave adsorptive stripping voltammetry on a rotating-disc bismuth-film electrode

Morfobos, Manolis; Economou, Anastasios; Voulgaropoulos, Anastasios

doi:10.1016/j.aca.2004.05.022

Cited by 131 publications

(59 citation statements)

References 17 publications

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“…Bismuth is used for the modification of different kinds of carbon based electrodes such as carbon paste electrodes, 6,9-11 carbon fiber electrodes, 8 graphite epoxy composite electrodes, 12,13 carbon nanotube nanoelectrode array, 14 carbon film electrodes, 15,16 boron doped diamond 17 and particularly glassy carbon electrodes. [18][19][20][21][22][23][24][25][26][27][28][29][30][31][32][33][34][35] It is also used for modification of other types of electrode materials such as screen printed electrodes, 36,37 copper disk electrodes, [38][39][40] pencil lead(II) electrode 41 and electrically heated electrode 42 and they are used for detection of different heavy metal ions such as cadmium, 12,14,21,24,26 lead, 12,21,27,29 zinc, 20,26,27 nickel, 23,28,…”

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confidence: 99%

Electroanalytical Determination of Cadmium(II) and Lead(II) Using an in-situ Bismuth Film Modified Edge Plane Pyrolytic Graphite Electrode

et al. 2007

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A highly sensitive and simple electroanalytical methodology is presented using an in-situ bismuth film modified edge plane pyrolytic graphite electrode (BiF-EPPGE) which is exemplified with the simultaneous determination of cadmium(II) and lead(II). Square-wave anodic stripping voltammetry is utilised with the effects of several experimental variables studied. Simultaneous additions of cadmium(II) and lead(II) were investigated where two linear ranges between 0.1 -100 and 0.1 -300 μg/L and also detection limits of 0.062 and 0.084 μg/L were obtained, respectively. The method was then successfully applied to the simultaneous determination of cadmium(II) and lead(II) in spiked river water, where recoveries of 100.5 and 98% were obtained, respectively. This electroanalytical protocol using edge plane pyrolytic graphite electrodes is one of the simplest methodologies to date using non-mercury based electrodes and is simpler and cheaper than alternatives such as carbon nanotube electrode arrays, suggesting the use of edge plane pyrolytic graphite electrode for routine sensing.

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confidence: 99%

Electroanalytical Determination of Cadmium(II) and Lead(II) Using an in-situ Bismuth Film Modified Edge Plane Pyrolytic Graphite Electrode

et al. 2007

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“…The proposed electrode shows high sensitivity with a detection limit of 8.1 ×10 -11 mol/L, which is much lower than those obtained with bismuth film electrodes. 3,4,26,27 …”

Section: Resultsmentioning

confidence: 99%

“…23 Most of the bismuth film electrodes developed for cobalt determination show a higher detection limit than mercury electrodes even when the catalytic processes are employed. 3,4,10,11 This paper reports for the first time the adsorptive cathodic stripping behavior of a Bi/MWNT composite modified electrode, which shows a dramatically enhanced sensitivity to cobalt with a detection limit below 1×10 -10 mol/L. Comparisons will be shown among the bare glassy carbon electrode, BiFE, MWNT and Bi/MWNT modified electrodes.…”

Section: Introductionmentioning

confidence: 99%

“…7 These electrodes have been applied to determination of many heavy metals such as cadmium, 8 lead, 8 tin, 9 nickel 3,4 and cobalt. 3,4,10,11 Carbon nanotubes (CNT) have attracted much attention in electroanalysis due to the unique mechanical, electronic, geometrical and chemical properties. [12][13][14] In recently years, it has been found that combining metal particles, such as platinum, 15 nickel, 16 copper 17 and palladium, 18 with CNT-modified electrodes can provide a promising way for fabrication of novel electrodes with largely improved performances.…”

Section: Introductionmentioning

confidence: 99%

“…[2][3][4][5] Due to these attractive electrochemical characteristics, nowadays various kinds of bismuth film electrodes have been prepared by in situ or ex situ plating bismuth onto substrates including glassy carbon (GC), 3 carbon paste 6 and silicon. 7 These electrodes have been applied to determination of many heavy metals such as cadmium, 8 lead, 8 tin, 9 nickel 3,4 and cobalt.…”

Section: Introductionmentioning

confidence: 99%

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Fabrication of Bismuth/Multi‐walled Carbon Nanotube Composite Modified Glassy Carbon Electrode for Determination of Cobalt

Wang

Pan

et al. 2009

Chin. J. Chem.

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A bismuth/multi-walled carbon nanotube (Bi/MWNT) composite modified electrode for determination of cobalt by differential pulse adsorptive cathodic stripping voltammetry is described. The electrode is fabricated by potentiostatic pre-plating bismuth film on an MWNT modified glassy carbon (GC) electrode. The Bi/MWNT composite modified electrode exhibits enhanced sensitivity for cobalt detection as compared with the bare GC, MWNT modified and bismuth film electrodes. Numerous key experimental parameters have been examined for optimum analytical performance of the proposed electrode. With an adsorptive accumulation of the Co(II)-dimethylglyoxime complex at -0.8 V for 200 s, the reduction peak current is proportional to the concentration of cobalt in the range of 4.0×10-10 -1.0×10 -7 mol/L with a lower detection limit of 8.1×10 -11 mol/L. The proposed method has been applied successfully to cobalt determination in seawater and lake water samples.

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Stripping Analysis at Bismuth Electrodes: A Review

Wang¹

2005

Electroanalysis

564

386

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For many years mercury electrodes were the transducer of choice in stripping voltammetry of trace metals owing to their high sensitivity, reproducibility, and renewability. However, because of the toxicity of mercury, alternative (environmentally friendly) electrode materials are highly desired for both centralized and field applications. Recently introduced bismuth electrodes offer a very attractive alternative to commonly used mercury electrodes. Such electrodes display well-defined, undistorted and highly reproducible response, favorable resolution of neighboring peaks, high hydrogen evolution, with good signal-to-background characteristics comparable to those of common mercury electrodes. The attractive stripping behavior of bismuth electrodes reflects the ability of bismuth to form fused multicomponent alloys with heavy metals. Bismuth stripping electrodes thus hold great promise for decentralized metal testing, with applications ranging from continuous remote sensing to single-use measurements. Fundamental studies aimed at understanding the behavior of bismuth film electrodes should lead to rational preparation and operation of reliable alternative (non -mercury) stripping electrodes that would have a major impact upon electroanalysis of trace metals. This article reviews the development, behavior, scope and prospects of bismuth electrodes for stripping-based electrochemical measurements of trace metals.

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Simultaneous determination of nickel(II) and cobalt(II) by square wave adsorptive stripping voltammetry on a rotating-disc bismuth-film electrode

Cited by 131 publications

References 17 publications

Electroanalytical Determination of Cadmium(II) and Lead(II) Using an in-situ Bismuth Film Modified Edge Plane Pyrolytic Graphite Electrode

Electroanalytical Determination of Cadmium(II) and Lead(II) Using an in-situ Bismuth Film Modified Edge Plane Pyrolytic Graphite Electrode

Fabrication of Bismuth/Multi‐walled Carbon Nanotube Composite Modified Glassy Carbon Electrode for Determination of Cobalt

Stripping Analysis at Bismuth Electrodes: A Review

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