Potassium ion-selective polyaniline solid-contact electrodes based on 4′,4″(5″)-di-tert-butyldibenzo-18-crown-6-ether ionophore

Han, Won‐Sik; Lee, Y. H.; Jung, Kil; Ly, Suw Young; Hong, Tae‐Kee; Kim, M. H.

doi:10.1134/s1061934808100110

Cited by 18 publications

(13 citation statements)

References 28 publications

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“…epilepsy) or nephrosis (i.e. renal failure), where K + concentration in extracellular space reaches up to 10 mM may cause a stroke [27], [52]. Extracellular fluids (blood plasma and interstitial fluid) contains various analytes from cations, anions, organic acids and proteins.…”

Section: E Artificial Serum Testmentioning

confidence: 99%

“…Over the past few years, conducting polymers have been applied as promising ion-to-electron transducers for solid contact ISEs because they exhibit both electrical and ionic conductivity which means they can help ion-to-electron transition by oxidation/reduction of conducting polymers (Figure 1b) [22], [23]. Many electronically conducting polymers including polypyrroles [24], poly(3-octylthiophene) (POT) [25], and poly(3,4-etyhlene-dioxythiophene) (PEDOT) [26], and polyaniline (PANI) [27] were tested as ion-to-electron transducers. It should be noted that PANI does not prevent water layer formation; rather, its conductivity is stable over a wide range of water content [28], [29].…”

Section: Introductionmentioning

confidence: 99%

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Potassium Ion Selective Electrode Using Polyaniline and Matrix-Supported Ion-Selective PVC Membrane

2018

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Solid-state potassium ion selective electrode (K + ISE) has been the most studied chemical sensors due to its practical importance in biomedical applications. One of the major obstacles that prevented widespread use of solid-state K + ISE has been output potential drift problem. In this paper, we developed an electrochemical sensing unit in which working, counter, and reference electrodes are integrated in a single plane as all-solid-state form. In order to mitigate the output potential drift, a polyaniline intermediate layer and salt-saturated polyvinylebutyral top coating are introduced in the working and reference electrodes, respectively. Using cyclic voltammetry (CV), uniform layers of polyaniline are deposited on carbon electrode, as confirmed by scanning electron microscope observation. Potentiometry and electrochemical impedance spectroscopy measurement on our K + ISE show high sensitivity (60.5 mV/decade), low concentration for the limit of detection (10 −5.8 M), and large range of linear detection (10 −5 − 1 M), and superior selectivity of K + ISE against NH + 4 , Na + , Mg 2+ , Ca 2+ , and Fe 3+. With its high potential to be miniaturized, we foresee that our solid-state K + ISE will motivate the future applications in microdevices for clinical analysis, agricultural, and environmental applications.

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Section: E Artificial Serum Testmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Potassium Ion Selective Electrode Using Polyaniline and Matrix-Supported Ion-Selective PVC Membrane

2018

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“…New ion-selective electrodes for potassium were developed and tested employing 18-crown-6-ether, dibenzo-18-crown-6-ether, and 4',4''(5'')-di-tert-butyldibenzo-18-crown-6-ether (dbdb-18-6) ionophores in PVC membranes with a polyaniline solid contact between the membranes and the Pt substrate (Han et al, 2008). Many types of sensors have been developed to measure the concentration of potassium ions.…”

Section: Selecting Plasticizers For Inorganic Ion Sensitive Potentiommentioning

confidence: 99%

Use of Plasticizers for Electrochemical Sensors

Mihali¹,

Vaum²

2012

Recent Advances in Plasticizers

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“…The special interaction between two or more molecules by noncovalent bonding, for example, hydrogen bonding, hydrophobic forces, metal coordination, halogen bonding, π–π interactions, van der Waals forces, and electrostatic and/or electromagnetic effects can be represented by the molecular recognition term [ 32 , 33 , 34 ]. The researchers proved that several supramolecular preparations can be prepared that exhibit molecular recognition features, where the guest species and the host species that are implicated in molecular recognition display molecular complementarity [ 35 , 36 , 37 ]. One of the most famous examples of these systems is crown ethers, which have the ability to integrate or selectively bind specific cations.…”

Section: Introductionmentioning

confidence: 99%

Novel Hybrid Nanoparticles: Synthesis, Functionalization, Characterization, and Their Application in the Uptake of Scandium (III)Ions from Aqueous Media

et al. 2020

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The aim of this study was to prepare novel supramolecular hybrid nanoparticles (HNPs) that can selectively separate and recover scandium metal ions, Sc(III), from an aqueous phase based on molecular recognition technology (MRT). Moreover, this approach is fully compatible with green chemistry principles. In this work, natural amorphous silica (SiO2) nanoparticles were prepared by a precipitation method from Iraqi rice husk (RH) followed by surface modification with 3-amino-propyl triethoxysilane (APTES) as coupling agent and Kryptofix 2.2.2 (K2.2.2) as polycyclic ligand. To evaluate the potential of the hybrid nanoparticles, the prepared HNPs were used for the solid–liquid extraction of scandium, Sc(III), ions from model solutions due to the fact that K2.2.2 are polycyclic molecules. These polycyclic molecules are able to encapsulate cations according to the corresponding cavity size with the ionic radius of metal by providing a higher protection due their cage-like structures. Moreover, the authors set the objectives to design a high-technology process using these HNPs and to develop a Sc recovery method from the aqueous model solution prior to employing it in industrial applications, e.g., for Sc recovery from red mud leachate. The concentrations of Sc model solutions were investigated using the UV-Vis spectrophotometer technique. Different characterization techniques were used including scanning electron microscope (SEM), atomic force microscopy (AFM), Brunauer–Emmett–Teller (BET), X-ray diffraction (XRD), X-ray fluorescence (XRF), and Fourier transform infrared (FTIR). The extraction efficiency of Sc varied from 81.3% to 96.7%. Moreover, the complexed Sc ions were efficiently recovered by HCl with 0.1 mol/L concentration. The stripping ratios of Sc obtained ranged from 93.1% to 97.8%.

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Potassium ion-selective polyaniline solid-contact electrodes based on 4′,4″(5″)-di-tert-butyldibenzo-18-crown-6-ether ionophore

Cited by 18 publications

References 28 publications

Potassium Ion Selective Electrode Using Polyaniline and Matrix-Supported Ion-Selective PVC Membrane

Potassium Ion Selective Electrode Using Polyaniline and Matrix-Supported Ion-Selective PVC Membrane

Use of Plasticizers for Electrochemical Sensors

Novel Hybrid Nanoparticles: Synthesis, Functionalization, Characterization, and Their Application in the Uptake of Scandium (III)Ions from Aqueous Media

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