On-site determination of Pb2+ and Cd2+ in seawater by double stripping voltammetry with bismuth-modified working electrodes

Zhang, X; Zhang, Y; Ding, Dong; Zhao, Jun; Liu, J; Yang, Wenrong; Qu, Kun

doi:10.1016/j.microc.2015.12.010

Cited by 39 publications

(16 citation statements)

References 43 publications

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“…In this, the bismuth deposition occurred simultaneously with the electrochemical deposition of analytes. Moreover, the in situ procedure was chosen because it allows better adhesion of the Bi film to the GE surface, besides the obtaining of higher and better resolved peaks in the voltammograms, along with the higher sensitivity to Cd(II) and Pb(II) when compared to the ex situ method [ 34 , 35 ].…”

Section: Methodsmentioning

confidence: 99%

Inexpensive Bismuth-Film Electrode Supported on Pencil-Lead Graphite for Determination of Pb(II) and Cd(II) Ions by Anodic Stripping Voltammetry

Bedin

Mitsuyasu

Ronix

et al. 2018

International Journal of Analytical Chemistry

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The present work reports the development and application of bismuth-film electrode (BiFE), obtained by in situ method on the pencil-lead graphite surface, for simultaneous Cd(II) and Pb(II) determination at trace levels, as alternative to replace the mercury-film electrodes. Experimental factors, deposition time (td), deposition potential (Ed), and Bi(III) concentration (CBi), were investigated by applying a 23 factorial design using 0.10 mol/L acetate buffer solution (pH 4.5) as supporting electrolyte. The analysis conditions of the differential pulse technique were td = 250 s, Ed = -1.40 V, and CBi = 250 mg L−1. The validation of the method employing BiFE was accomplished by determination of merit figures. The detection limits were of 11.0 μg L−1 for Cd(II) and 11.5 μg L−1 for Pb(II), confirming that proposed method is attractive and suitable for heavy metals determination. Additionally, the BiFE developed was successfully applied for the Cd(II) and Pb(II) determination in wastewater sample of battery industry.

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Section: Methodsmentioning

confidence: 99%

Inexpensive Bismuth-Film Electrode Supported on Pencil-Lead Graphite for Determination of Pb(II) and Cd(II) Ions by Anodic Stripping Voltammetry

Bedin

Mitsuyasu

Ronix

et al. 2018

International Journal of Analytical Chemistry

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“…Lead (Pb), one of the heavy metal ions, is highly toxic to the marine aquatic plants and animals and eventually harmful to the human beings through bioaccumulation (Kazi et al, 2009;Chang et al, 2014). It has been reported that the content of Pb in coastal waters is much higher than that in the open ocean because of the enormous amount of anthropogenic contamination (Zhang et al, 2016). Therefore, determination of Pb 2+ in coastal waters is of great importance for the environmental protection and public health.…”

Section: Introductionmentioning

confidence: 99%

“…Many techniques have been developed for the determination of heavy metal ions, including atomic absorption spectroscopy, atomic emission spectroscopy, and inductively coupled plasma-mass spectrometry (Manivannan and Biju, 2011;Zhu et al, 2017). Although these methods possess various advantages and have been commonly used, the requirement of cumbersome instruments, time-consuming pretreatments, and high cost are the inevitable limitations (Hu et al, 2015;Zhang et al, 2016).…”

Section: Introductionmentioning

confidence: 99%

Stripping Voltammetric Determination of Lead in Coastal Waters With a Functional Micro-Needle Electrode

et al. 2020

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In this work, for the voltammetric determination of lead (Pb) in coastal waters, a novel functional micro-needle electrode based on 3D reduced graphene oxide/flowerlike bismuth nanosheets (3DrGO/F-BiNSs) was fabricated. The micro-needle electrode was prepared with the commercial acupuncture needle (ANE) and functionalized with 3DrGO/F-BiNSs through stepwise electrodeposition method. The sensing surface (needle tip) of the micro-needle electrode was first modified with 3DrGO to enhance the conductivity and provide more active sites to combine Bi nanomaterials. Then the F-BiNSs were electrodeposited on the 3DrGO surface to facilitate the electrochemical voltammetric response of Pb 2+ due to their excellent combining ability with Pb. The physical and electrochemical properties of the as-prepared 3DrGO/F-BiNSs/ANE were characterized by different techniques including scanning electron microscope (SEM), energy dispersive X-ray spectroscopy (EDS), and electrochemical methods. The 3DrGO/F-BiNSs/ANE exhibited an excellent performance for the voltammetric determination of Pb 2+ with the linear range of 40 to 600 nmol L −1 and detection limit of 12.5 nmol L −1. Additionally, the application of the functional micro-needle electrode for Pb determination in different coastal water samples was also investigated.

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“…The pollution of the environment by toxic elements and heavy metals has received important attention recently. Most heavy metals persist in the environment and cause pollution in air, soil, and water ecosystems [1] and these cations considered as a hazardous class of environmental pollutants can be harmful to human health even at low concentrations [2]. Nickel and its compounds can lead to serious problems, including allergic reactions, respiratory system cancer [3] and certain nickel compounds may be carcinogenic [4].…”

Section: Introductionmentioning

confidence: 99%

Application of response surface methodology for optimization and determination of nickel by syringe to syringe dispersive liquid phase micro-extraction in environmental water and herb samples coupled with flame atomic absorption spectrometry

Omidinejad

Ramezani

Alimoradi

2020

Eurasian Chem. Commun.

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A novel, rapid, simple and sensitive syringe-to-syringe-dispersive liquid-phase micro-extraction (SS-DLPME) method followed by flame atomic absorption spectrometry was proposed for pre-concentration and determination of nickel ion in water and herbal samples using 1-(2-pyridylazo)-2-naphthol as a chelating agent. Various experimental factors on pre-concentration and determination of nickel such as pH of sample solution, concentration of the complex agent, volume of the extraction solvent, shooting times, centrifugation time and ionic strength were investigated using Plackett-Burman design for screening and Box-Behnken design as an optimization method. Under optimum conditions, the calibration curve was linear over the range of 10-875 µg L-1 with the coefficient of determination R 2 = 0.997 and the detection limit of 1.800 µg L-1. Relative standard deviation (R.S.D) for 8 replicate determinations and the enrichment factor (EF), were 2.050% and 86, respectively. Finally, the proposed method was applied successfully to pre-concentration and determination of the analyte in environmental water and herbal samples.

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On-site determination of Pb2+ and Cd2+ in seawater by double stripping voltammetry with bismuth-modified working electrodes

Cited by 39 publications

References 43 publications

Inexpensive Bismuth-Film Electrode Supported on Pencil-Lead Graphite for Determination of Pb(II) and Cd(II) Ions by Anodic Stripping Voltammetry

Inexpensive Bismuth-Film Electrode Supported on Pencil-Lead Graphite for Determination of Pb(II) and Cd(II) Ions by Anodic Stripping Voltammetry

Stripping Voltammetric Determination of Lead in Coastal Waters With a Functional Micro-Needle Electrode

Application of response surface methodology for optimization and determination of nickel by syringe to syringe dispersive liquid phase micro-extraction in environmental water and herb samples coupled with flame atomic absorption spectrometry

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