A Comparative Study of Cadmium Ion‐Selective Electrodes with Solid and Liquid Inner Contact

Wardak, Cecylia

doi:10.1002/elan.201100362

Cited by 23 publications

(8 citation statements)

References 33 publications

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“…In our previous papers, we demonstrated that the properties of solid-contact electrodes, such as the detection limit and selectivity also depend on the procedure used for electrode conditioning (Wardak, 2012b;Wardak, 2014Wardak, , 2015. Therefore the next step of the study was the optimization of cobalt concentration in the conditioning solution.…”

Section: Resultsmentioning

confidence: 99%

Single-piece all-solid-state Co(II) ion-selective electrode for cobalt monitoring in real samples

Wardak¹,

Grabarczyk²

2019

Int. Agrophys.

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A b s t r a c t. A novel single-piece all-solid-state ion-selective electrode for Co 2+ determination has been prepared. The PVC membrane was modified by the addition of ionic liquid. The effect of various ionic liquids was studied in detail and improved performance was observed. The best performance exhibited by the electrode was achieved with a membrane containing 1-ethyl-3-methyl imidazolium chloride, having a slope of 31.8 mV/ decade in a wide concentration range of 1×10 -7 -1×x10 -1 mol L -1 . The limit of detection was 5.6×10 -8 mol L -1 . The response time of the proposed sensor was less than 10 s and the lifetime was at least three months. The proposed sensor showed good selectivity towards the Co 2+ ion in comparison with some alkali, alkaline earth, transition and heavy metal ions. It was successfully applied for the direct determination of cobalt ions in real sample solution.K e y w o r d s: cobalt(II) ion-selective electrode, ionic liquids, solid contact, potentiometry

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Section: Resultsmentioning

confidence: 99%

Single-piece all-solid-state Co(II) ion-selective electrode for cobalt monitoring in real samples

Wardak¹,

Grabarczyk²

2019

Int. Agrophys.

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“…Among different types of ISEs, special attention was focused on ionselective electrodes with polymer membrane without the internal electrolyte, called Solid Contact Ion-selective Electrodes (SCISEs). These electrodes have many advantages over their classical equivalents containing an internal solution (Wardak 2012). The lack of the internal solution enables construction of electrodes which can have any shape and much smaller sizes, so consequently their production costs can be reduced.…”

Section: Stripping Voltammetry and Its Use For The Determination Of V(v)mentioning

confidence: 99%

Electrochemical sensors as simple and cheap devices for rapid determination of various species in environmental samples

et al. 2019

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The electrochemical methods are very good tool for determination of trace concentrations of various species in water samples. The analysis carried out using these methods are usually simple, fast and also the cost of the required equipment is much lower comparing to other instrumental methods. Furthermore, the electroanalytical methods are easy to automate and computerize. Among five major groups of these methods (potentiometry, voltammetry, coulometry, conductometry and dielectrometry), potentiometry and voltammetry attract the greatest attention of researchers. In this paper, experimental results of research related to development of procedures (voltammetric and potentiometric) for the determination of elements in environmental water samples were presented. Due to their common occurrence in environment and possible toxic effects on living organisms, vanadium and nitrate ions were selected for investigation. Optimization of voltammetric procedure for V(V) determination were carried out in matrix containing different surfactants and humic acids, using lead film electrode as a working electrode. Results showed that only nonionic surfactant Brij-35 did not interfere with the voltammetric signal. Other surfactants as well as humic acids reduced the signal, and possibility of their elimination with suitable resins were also investigated. Potentiometric measurements were consisted of preparation and determination of analytical properties of nitrate ion-selective electrodes with solid contact. The results showed that among three different membrane composition, the best response was achieved by membrane containing: Ni(Phen)2, THTDPCl, PVC and NPOE in the ratio of 1:2:33:64 wt. %, respectively. With the detection limit of 2.8 × 10-6 mol L-1, the working concentration range from 5 × 10-5 to 1 × 10-1 mol L-1 and a slope of -55.1 mV per decade, this electrode showed good selectivity to sulfate, acetate, carbonate, dihydrogen phosphate, fluoride and chloride ions, and also good potential reversibility.

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“…For instance, Wardak (124,125) applied ILs as a solid contact in ISEs to study the effect of three different alkyl chains situated on the methylimidazolium cation, while keeping the anion constant (Cl À ). The author observed that the substituents in the imidazolium ring affected the limit of detection (LOD) of the sensors and the best results were obtained with 1-butyl-3-methylimidazolium.…”

Section: Ionic Liquids For Sensing Ionsmentioning

confidence: 99%

Properties and Customization of Sensor Materials for Biomedical Applications

Zuliani¹,

Curto²,

Matzeu³

et al. 2014

Comprehensive Materials Processing

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A Comparative Study of Cadmium Ion‐Selective Electrodes with Solid and Liquid Inner Contact

Cited by 23 publications

References 33 publications

Single-piece all-solid-state Co(II) ion-selective electrode for cobalt monitoring in real samples

Single-piece all-solid-state Co(II) ion-selective electrode for cobalt monitoring in real samples

Electrochemical sensors as simple and cheap devices for rapid determination of various species in environmental samples

Properties and Customization of Sensor Materials for Biomedical Applications

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