Electrochemical impedance spectroscopy of lead(II) ion-selective solid-state membranes

Tamiasso-Martinhon, Priscila; Carreño, Javier; Silva, Célia Regina Sousa da; Barcia, Oswaldo E.; Mattos, O.R.

doi:10.1016/j.electacta.2005.08.035

Cited by 28 publications

(6 citation statements)

References 24 publications

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“…5b-c). The slope of the straight line is not unity, suggesting an anomalous diffusion behavior [55]. Therefore, the effect of mass transport could be represented by diffusion impedance, Z D .…”

Section: Cyclic Voltammetrymentioning

confidence: 99%

Electrochemical and spectroscopic characterization of screen-printed gold-based electrodes modified with self-assembled monolayers and Tc85 protein

Ferreira

Fugivara

Barrozo

et al. 2009

Journal of Electroanalytical Chemistry

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Section: Cyclic Voltammetrymentioning

confidence: 99%

Electrochemical and spectroscopic characterization of screen-printed gold-based electrodes modified with self-assembled monolayers and Tc85 protein

Ferreira

Fugivara

Barrozo

et al. 2009

Journal of Electroanalytical Chemistry

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“…EIS is a powerful, nondestructive and informative method [26] allowing one to trace the electrochemical events at the electrode/solution interface far from, near, or at the equilibrium potentials [27][28][29]. For example, the effects of grain boundaries [30] and membrane structure [31] on the response of solid-state pH-sensors and potentiometric solid-state membranes have been investigated by EIS. The goal of the EIS studies in this work was to investigate the stability and reproducibility of the Ni-RuO 2 electrode in alkaline and acidic conditions.…”

Section: Potential Polarizationmentioning

confidence: 99%

Electrochemical characterization and application of Ni-RuO2 as a pH sensor for determination of petroleum oil acid number

Shervedani¹,

Mehrdjardi²,

Ghahfarokhi³

2007

JICS

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Electrochemical characterization and application of nickel ruthenium dioxide (Ni-RuO 2 ) as a pH sensor for the determination of petroleum oil acid number is described. The sensor consists of RuCl 3 thermally decomposed onto the upper side of a polycrystalline nickel electrode at 400 °C in an open furnace. The advantages of the sensor are: (i) easy preparation, (ii) fast response in a large pH range, (iii) high physical and chemical stability, and (iv) excellent reproducibility as determined by the reproducible linear variation of charge transfer resistance (R ct ) as a function of overpotential (η) obtained by electrochemical impedance spectroscopy (EIS), and the Nernstian slope of the electrode potential in a wide range of pH (1.5-12.5) obtained by potentiometric measurements. The potentiometric selectivity coefficients of the sensor toward some anions and cations were evaluated in aqueous solution. The characterized Ni-RuO 2 pH sensor was successfully tested for the determination of petroleum oil acid number.

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“…Few studies were found using polycrystalline materials for lead-selective ISEs. A polycrystalline electrode comprising silver sulphide/lead sulphide (Ag 2 S/PbS) with a 1:1 molar ratio was reported to achieve a limit of detection of 1 × 10 −4 M for lead(II) [78].…”

Section: Solid-contact Ion-selective Electrodesmentioning

confidence: 99%

Ion-Selective Electrodes for Detection of Lead (II) in Drinking Water: A Mini-Review

2018

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Despite the fact that the adverse health effects due to the intake of lead have been well studied and widely recognized, lead contamination in drinking water has been reoccurring worldwide, with some incidents escalating into a public drinking water crisis. As lead contamination is often related to lead-based pipes close to or inside homes, it is not realistic, at least in the near term, to remove and replace all lead connection pipes and lead-based plumbing. Effective monitoring of lead concentration at consumers' water taps remains critical for providing consumers with first-hand information and preventing potential wide-spread lead contamination in drinking water. This review paper examines the existing common technologies for laboratory testing and on-site measuring of lead concentrations. As the conventional analytical techniques for lead detection require using expensive instruments, as well as a high time for sample preparation and a skilled operator, an emphasis is placed on reviewing ion-selective electrode (ISE) technology due to its superior performance, low cost, ease of use, and its promising potential to be miniaturized and integrated into standalone sensing units. In a holistic way, this paper reviews and discusses the background, different types of ISEs are reviewed and discussed, namely liquid-contact ISEs and solid-contact ISEs. Along with the potential opportunities for further research, the limitations and unique challenges of ISEs for lead detection are also discussed in detail.

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Electrochemical impedance spectroscopy of lead(II) ion-selective solid-state membranes

Cited by 28 publications

References 24 publications

Electrochemical and spectroscopic characterization of screen-printed gold-based electrodes modified with self-assembled monolayers and Tc85 protein

Electrochemical and spectroscopic characterization of screen-printed gold-based electrodes modified with self-assembled monolayers and Tc85 protein

Electrochemical characterization and application of Ni-RuO2 as a pH sensor for determination of petroleum oil acid number

Ion-Selective Electrodes for Detection of Lead (II) in Drinking Water: A Mini-Review

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