Simultaneous determination of ultratrace lead and cadmium by square wave stripping voltammetry with in situ depositing bismuth at Nafion-medical stone doped disposable electrode

Li, Hongbo; Li, Jing; Yang, Zhanjun; Xu, Qin; Hou, Chaohuan; Peng, Jinyun; Hu, Xiaoyun

doi:10.1016/j.jhazmat.2011.04.020

Cited by 101 publications

(18 citation statements)

References 49 publications

(52 reference statements)

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“…Lead and cadmium in rice samples are determined by means of ASV using a bismuth film/crown ether/Nafion-modified screenprinted carbon electrode [15]. Li et al [16] reported the simultaneous detection of ultratrace lead and cadmium by square wave stripping voltammetry with in situ depositing bismuth at the Nafion-medical stone-doped disposable electrode, and the assay results of heavy metals in wastewater with the proposed method were in a good agreement with the atomic absorption spectroscopy method. To the best of our knowledge, a few articles have attempted to study the simultaneous determination of Zn(II), Cd(II), Pb(II), and Cu(II) by BiFE.…”

Section: Introductionmentioning

confidence: 75%

Simultaneous Determination of Zn(II), Cd(II), Pb(II), and Cu(II) Using Differential Pulse Anodic Stripping Voltammetry at a Bismuth Film-Modified Electrode

Thanh

Hop

Luyen

et al. 2019

Advances in Materials Science and Engineering

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The simultaneous electrochemical determination of Zn(II), Cd(II), Pb(II), and Cu(II) in the aqueous solution has been developed on the basis of the bismuth film glassy carbon electrode (GCE) using differential pulse anodic stripping voltammetry (DP-ASV). The bismuth film electrode (BiFE) was prepared by adding 500 ppb bismuth(III) directly to the sample solution and simultaneously depositing bismuth and the metal analytes on GCE. The optimal operational parameters, namely, accumulation potential (–1.6 V), accumulation time (110 s), pulsed amplitude (0.07 V), and scan rate (0.021 V·s−1), were found using a Box–Behnken design. Under the optimum conditions, a linear relationship exists between the current and the concentration of Zn(II), Cd(II), Pb(II), and Cu(II) in the range between 5.0 ppb and 110.0 ppb with the detection limits of 1.07 for Zn(II), 0.93 ppb for Cd(II), 0.65 ppb for Pb(II), and 0.94 ppb for Cu(II) calculated on the basis of a signal-to-noise ratio equal to 3 (S/N = 3). The interference experiments show that Co(II), Ni(II), and Fe(III) have a little influence on the DP-ASV signals of Zn(II), Cd(II), Pb(II), and Cu(II). In addition, a high reproducibility was indicated from small relative standard deviations (1.03%, 1.74%, 1.32%, and 4.74%) for 25 repeated measurements of 15 ppb copper, lead, cadmium, and zinc solutions. BiFE was successfully applied to determine Zn(II), Cd(II), Pb(II), and Cu(II) in river samples, and the results are in a good agreement with those determined with graphite furnace atomic absorption spectrometry (GF-AAS).

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Section: Introductionmentioning

confidence: 75%

Simultaneous Determination of Zn(II), Cd(II), Pb(II), and Cu(II) Using Differential Pulse Anodic Stripping Voltammetry at a Bismuth Film-Modified Electrode

Thanh

Hop

Luyen

et al. 2019

Advances in Materials Science and Engineering

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“…Therefore, it was selected as an appropriate supporting electrolyte for the next experiments. Previous studies showed that the acetate buffer 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 was a commonly supporting electrolyte used in anodic stripping voltammetry of Pb 2+ [11,55].…”

Section: Effect Of Supporting Electrolytes and Swasv Conditionsmentioning

confidence: 99%

Electrochemical determination of traces lead ions using a new nanocomposite of polypyrrole/carbon nanofibers

Oularbi

Turmine

Rhazi³

2017

J Solid State Electrochem

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In this paper, a new nanocomposite of polypyrrole (PPy) and carbon nanofibers (CNFs) modified carbon paste electrode (CPE) has been reported for the determination of traces lead ions (Pb 2+ ). The obtained nanocomposite was fabricated by combining the unique advantages of PPy and CNFs using a very simple approach, which consists on modifying the CPE by the functionalized CNFs and then by the PPy film using galvanostatic mode. Several techniques were used to investigate the functionalized CNFs and the PPy/CNFs nanocomposite including Fourier transform infrared spectroscopy (FTIR) and X-ray diffraction (XRD) for surface layers of CNFs, cyclic voltammetry (CV) and electrochemical impedance spectroscopy (EIS) for the electrical proprieties of the PPy/CNFs nanocomposite. The surface morphologies were examined by field emission gun scanning electron microscopy (FEG-SEM). The square wave anodic striping voltammetry (SWASV) was used to investigate the analytical performances of the designed electrode PPy/CNFs/CPE. Different parameters that affect the stripping analysis of Pb 2+ including supporting electrolyte, deposition potential, and deposition time were investigated. Under the optimum experimental conditions, a good linearity between the stripping peak currents and the concentration of Pb 2+ was obtained in the range of concentration from 0.2 to 130 µg L -1 Pb 2+ . The detection limit was estimated to be 0.05 µg L -1 Pb 2+ . Finally, the proposed method has been successfully applied for the determination of Pb 2+ in real samples of tap water with satisfactory results.

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“…The stripping peak heights of both metals (Cd 2+ and Pb 2+ ) increased with time upto 50 s. Beyond that, stripping peaks for Cd 2+ and Pb 2+ ions became broadened and shifted. The distortions in signals beyond 50 s may be due to the increased thickness of the deposit [50,51] and attainment of saturation level for Cd and Pb metal at the electrode surface [20]. An accumulation time of 50 s was selected considering the compromise between sensitivity, time consumption and level of saturation of metal at electrode surface.…”

Section: Parameters Optimizationmentioning

confidence: 99%

Development of a novel cyano group containing electrochemically deposited polymer film for ultrasensitive simultaneous detection of trace level cadmium and lead

Philips

Gopalan

Lee

2012

Journal of Hazardous Materials

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Simultaneous determination of ultratrace lead and cadmium by square wave stripping voltammetry with in situ depositing bismuth at Nafion-medical stone doped disposable electrode

Cited by 101 publications

References 49 publications

Simultaneous Determination of Zn(II), Cd(II), Pb(II), and Cu(II) Using Differential Pulse Anodic Stripping Voltammetry at a Bismuth Film-Modified Electrode

Simultaneous Determination of Zn(II), Cd(II), Pb(II), and Cu(II) Using Differential Pulse Anodic Stripping Voltammetry at a Bismuth Film-Modified Electrode

Electrochemical determination of traces lead ions using a new nanocomposite of polypyrrole/carbon nanofibers

Development of a novel cyano group containing electrochemically deposited polymer film for ultrasensitive simultaneous detection of trace level cadmium and lead

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