Copper ion-selective electrodes based on newly synthesized salen-type Schiff bases and their complexes

Pietrzak, Karolina; Wardak, Cecylia; Cristóvão, Beata

doi:10.1007/s11581-022-04482-x

Cited by 8 publications

(2 citation statements)

References 42 publications

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“…and with the electronic spectrum of the complex, it was clear that it was with a tetrahedral structure . (38,39,40) All Zn(II), Cd(II), Hg(II), complexes are diamagnetic because they have an electronfilled d10 orbital and are expected to take the most common tetrahedral structure which is the most common depending on the chemical analysis and other physical measurements. (39,41) The electronic spectra of the ligand and the complexes were measured at a concentration of 10 -3 M and a temperature of 25°C, using dimethylformamide (DMF) as a solvent, and the results were obtained as in Table (3).…”

Section: Resultsmentioning

confidence: 99%

New Metal(II) Complexes of 2-Hydroxy-N-(2-Hydroxynaph Thalene-1-yl) Methylene Benzohydrazide: Synthesis and Spectroscopic Studies

Tawfik¹,

Altayy²

2023

CBERJ

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The study includes the preparation of complexes Co(II), Ni(II), Cu(II), Zn(II), Cd(II), and Hg(II) with Schiff base ligand (HNMBH2) which is derived from the condensation reaction of 2hydroxybenzohydrazide with 2-Hydroxy-1-naphthalene carboxaldehyde. The properties of which were characterized by infrared, magnetic measurements, molar conductivity measurements, electronic spectra, nuclear magnetic resonance spectra of 1 H and 13 C, and gas chromatographymass spectrometry. It is found that the ligand acts as neutral tridentate to give high-stability mononuclear complexes that have a tetrahedral or square planar structure.

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Section: Resultsmentioning

confidence: 99%

New Metal(II) Complexes of 2-Hydroxy-N-(2-Hydroxynaph Thalene-1-yl) Methylene Benzohydrazide: Synthesis and Spectroscopic Studies

Tawfik¹,

Altayy²

2023

CBERJ

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“…It is clear from Table 1 that better response characteristics in terms of slope, detection limit, and linear range are noticed by increasing the KTpClPB proportion in the membrane. Such improvement in the response behavior resulted from the ability of KTpClPB to increase the membrane's electrical conductivity, reduce the membrane ' s ohmic resistance, and enhance the exchange kinetics at the sample-membrane leading to better sensitivity [31]. It can be seen that 1.5% of KTpClPB is the suitable lipophilic additive ratio and higher proportions results in lower calibration slopes.…”

Section: Potentiometric Characterization Of the Developed Sensorsmentioning

confidence: 99%

Potentiometric Sensing of Thorium Ions Using PVC Matrix Electrodes Based on Crown Ethers

Akl

2023

Arab Journal of Nuclear Sciences and Applications

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New potentiometric membrane sensors have been designed to measure Th 4+ ions using two derivatives of 18-crown-6-ether as neutral ion-carriers. The membrane composition was optimized through a multi-stage process regarding plasticizers, lipophilic ionic additives, and ion-carrier content and the corresponding sensors' performance characteristics were investigated. The optimized sensors exhibited a Nernstian behavior for Th 4+ ions over wide working concentration and pH ranges. The sensors' repeatability, reproducibility, and reversibility were tested under the optimal conditions. The selectivity studies indicated the selective behavior of the developed sensors towards Th 4+ ions with respect to various mono, di, and trivalent ions. The sensors possess a fast response time and can work for at least 12 weeks without significant changes in their sensitivity. Th 4+ ions concentration in water samples was directly assessed by the developed sensors with good recovery and relative standard deviation values indicating the accuracy and precision of the developed sensors. Moreover, the obtained results were in a good agreement with those obtained by the spectrometric method.

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Construction of a novel Cu(II)-selective electrode with long life span based on 8-aminoquinoline functionalized bentonite

et al. 2022

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Copper ion-selective electrodes based on newly synthesized salen-type Schiff bases and their complexes

Cited by 8 publications

References 42 publications

New Metal(II) Complexes of 2-Hydroxy-N-(2-Hydroxynaph Thalene-1-yl) Methylene Benzohydrazide: Synthesis and Spectroscopic Studies

New Metal(II) Complexes of 2-Hydroxy-N-(2-Hydroxynaph Thalene-1-yl) Methylene Benzohydrazide: Synthesis and Spectroscopic Studies

Potentiometric Sensing of Thorium Ions Using PVC Matrix Electrodes Based on Crown Ethers

Construction of a novel Cu(II)-selective electrode with long life span based on 8-aminoquinoline functionalized bentonite

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