Modified carbon paste ion selective electrode for determining Cr(<scp>iii</scp>) ions in aqueous solutions and some real samples using tetragonal zirconia nanoparticles

Fouad, Omar A.; Wahsh, M.M.S.; Dessouky, Maher M I El; Mostafa, Maysa R.

doi:10.1039/d3ra01563g

Cited by 5 publications

(2 citation statements)

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“…One of the most important aspects of an ion-selective electrode is undoubtedly its selectivity behavior, which determines the feasibility of a trustworthy measurement in the target sample. For a number of inorganic cations, sugars, amino acids, and related compounds, the separated solution method [ 54 ] and the matched potential method [ 55 ] were used to determine the selectivity coefficients for MTF cations. How different substances affect the response of MTF-PT, MTF-PT-Al 2 O 3 , and MTF-PT-NiO-coated wire membrane sensors was investigated.…”

Section: Resultsmentioning

confidence: 99%

Exploiting of Green Synthesized Metal Oxide Nanoparticles in the Potentiometric Determination of Metformin Hydrochloride in Pharmaceutical Products

Almutairi,

Alarfaj,

Almutairi

et al. 2024

International Journal of Analytical Chemistry

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The advanced and highly functional properties of Al2O3 and NiO nanoparticles promote the widespread use of metal oxides as remarkable electroactive materials for sensing and electrochemical applications. The proposed study describes a comparison of the sensitivity and selectivity of two modified wire membrane sensors enriched with Al2O3 and NiO nanoparticles with conventional wire membranes for the quantification of the antidiabetic drug metformin hydrochloride (MTF). The results show linear relationships of the enriched Al2O3 and NiO nanosensors over the concentration ranges 1.0 × 10−10–1.0 × 10−2 mol L−1 and 1.0 × 10−6–1.0 × 10−2 M for both the modified sensors and the conventional coated wire membrane sensors. The regression equations were EmV = (52.1 ± 0.5) log (MTF) + 729 for enriched nanometallic oxides, EmV = (57.04 ± 0.4) log (MTF) + 890.66, and EmV = (58.27 ± 0.7) log (MTF) + 843.27 with correlation coefficients of 0.9991, 0.9997, and 0.9998 for the aforementioned sensors, respectively. The proposed method was fully validated with respect to the recommendations of the International Union of Pure and Applied Chemistry (IUPAC). The newly functionalized sensors have been successfully used for the determination of MTF in its commercial products.

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Section: Resultsmentioning

confidence: 99%

Exploiting of Green Synthesized Metal Oxide Nanoparticles in the Potentiometric Determination of Metformin Hydrochloride in Pharmaceutical Products

Almutairi,

Alarfaj,

Almutairi

et al. 2024

International Journal of Analytical Chemistry

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“…They offer several benefits, including improved ionic mobility, increased sensing material solubility, and decreased total bulk resistance of the sensor due to the polarity properties. They enhanced the mechanical link between every one of the electroactive carbon particles into a homogenous compact combination 35 , 36 . Various solvent mediators (DEHP, TOCP, DBP, o-NPOE, DIBP) were subjected to potentiometric measurement, and the obtained findings are shown in Fig.…”

Section: Resultsmentioning

confidence: 99%

Electrochemical and statistical study of Nickel ion assessment in daily children intake samples relying on magnesium aluminate spinel nanoparticles

Mostafa,

Mohamed,

Fouad

2024

Sci Rep

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Lately, children's daily consumption of some products, such as cereals and candies, has been rising, which provides a compelling rationale for determining any metallic substances that may be present. Monitoring the concentration of certain metals, like nickel, in these products is necessary due to medical issues in humans when consumed regularly. So, in this work, a novel and highly selective carbon paste as a Ni(II) ion-selective sensor was prepared and investigated using ceramic magnesium aluminum spinel nanoparticles as the ionophore and tritolyl phosphate (TOCP) as a plasticizer. A modified co-precipitation method was used to synthesize the spinel nanoparticles. X-ray diffraction, scanning electron microscope with EDAX, transmission electron microscope, and BET surface area were used to determine the phase composition, microstructure, pores size, particle size, and surface area of the synthesized nanoparticles. The spinel nanoparticle was found to have a nano crystallite size with a cubic crystal system, a particle size ranging from 17.2 to 51.52 nm, mesoporous nature (average pore size = 8.72 nm), and a large surface area (61.75 m2/g). The composition ratio of graphite carbon as a base: TOCP as binder: spinal as ionophore was 67.3:30.0:2.7 (wt%) based on potentiometric detections over concentrations from 5.0 × 10−8 to 1.0 × 10−2 mol L−1 with LOD of 5.0 × 10−8 mol L−1. A measurement of 29.22 ± 0.12 mV decade−1 over pH 2.0–7.0 was made for the Nernstian slope. This sensor demonstrated good repeatability over nine weeks and a rapid response of 8 s. A good selectivity was shown for Ni(II) ions across many interferents, tri-, di-, and monovalent cations. The Ni(II) content in spiked real samples, including cocaine, sweets, coca, chocolate, carbonated drinks, cereals, and packages, were measured. The results obtained indicated no significant difference between the proposed potentiometric method and the officially reported ICP method according to the F- and t-test data. In addition to utilizing ANOVA statistical analysis, validation procedures have been implemented, and the results exceed the ICP-MS methodology.

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Synthesis and electroanalytical applications of a novel hydrazinecarbothioamide derivative molecule

et al. 2023

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Modified carbon paste ion selective electrode for determining Cr(iii) ions in aqueous solutions and some real samples using tetragonal zirconia nanoparticles

Abstract: Tetragonal zirconia (t-ZrO2) nanoparticles (ionophore) are used in newly designed and improved ion selective electrodes for chromium ion detection as an alternative, low-cost, high-precision, and selectivity method.

Cited by 5 publications

References 60 publications

Exploiting of Green Synthesized Metal Oxide Nanoparticles in the Potentiometric Determination of Metformin Hydrochloride in Pharmaceutical Products

Exploiting of Green Synthesized Metal Oxide Nanoparticles in the Potentiometric Determination of Metformin Hydrochloride in Pharmaceutical Products

Electrochemical and statistical study of Nickel ion assessment in daily children intake samples relying on magnesium aluminate spinel nanoparticles

Synthesis and electroanalytical applications of a novel hydrazinecarbothioamide derivative molecule

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