Potentiometric Detection of Cr3+ Ions in Solution by a Chromium(III) Electrochemical Sensor Based on Diethyl 2-phthalimidomalonate Doped in Polymeric Membrane

Trivalent chromium is an essential element required for normal carbohydrate, lipid and protein metabolism in humans and animals. This article describes an efficient fluorescence resonance energy transfer (FRET) system between CePO4 :Tb(3+) nanocrystals as the donor and chromium(III) as the acceptor. CePO4 :Tb(3+) nanocrystals were synthesized in aqueous solution, and characterized by transmission electron microscopy. Under optimum conditions, a linear calibration graph was obtained (R(2) = 0.996). The linear range and detection limit of chromium(III) were 0.01-2.2 μM, and 9.1 nM, respectively. The proposed method had a wide linear range and proved to be very sensitive, rapid and simple. Moreover, the method was applied successfully to the determination of chromium(III) in synthetic samples and tap water.

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PdRuO2/PVP nanomaterial as a highly selective, stable, and applicable potentiometric sensor for the detection of Cr3+

Çevik,

Yildiz,

Yildiz

et al. 2024

Microchim Acta

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PdRuO2/PVP nanomaterial was synthesized using a straightforward method and characterized using advanced analytical methods such as TEM, XRD, XPS, elemental mapping and SEM. The synthesized PdRuO2/PVP nanomaterial was used as an ionophore in potentiometric sensor electrodes and successfully adapted to Cr3+ ion detection in a large number of aqueous samples. Several experimental parameters of the PdRuO2/PVP sensor such as potentiometric behavior, selectivity, repeatability, response time, pH, titration, and recovery in real samples were investigated. Potentiometric behavioral characteristics were performed in the concentration range 1 × 10−6–1.0 × 10−1 M. The repeated experiments performed six times showed that there was no deviation in the measurements. The limit of detection of the PdRuO2/PVP potentiometric sensor was very low with a value of 8.6 × 10−8 M. The potentiometric measurements showed that the synthesized PdRuO2/PVP ionophore was highly effective in detecting Cr3+ in a wide pH range of 2.0–8.0 and was found to have a shelf life of over 1 year. As a result, the synthesized PdRuO2/PVP electrode material was found to be highly selective, stable, and applicable for Cr3+ detection. Graphical Abstract

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Potentiometric Detection of Cr3+ Ions in Solution by a Chromium(III) Electrochemical Sensor Based on Diethyl 2-phthalimidomalonate Doped in Polymeric Membrane

Cited by 13 publications

References 81 publications

Determination of Heavy Metal Ions From Water

Determination of Heavy Metal Ions From Water

Determination of chromium(III) in aqueous solution using CePO₄:Tb³⁺ nanocrystals in a fluorescence resonance energy transfer system

PdRuO2/PVP nanomaterial as a highly selective, stable, and applicable potentiometric sensor for the detection of Cr3+

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Potentiometric Detection of Cr3+ Ions in Solution by a Chromium(III) Electrochemical Sensor Based on Diethyl 2-phthalimidomalonate Doped in Polymeric Membrane

Cited by 13 publications

References 81 publications

Determination of Heavy Metal Ions From Water

Determination of Heavy Metal Ions From Water

Determination of chromium(III) in aqueous solution using CePO4:Tb3+ nanocrystals in a fluorescence resonance energy transfer system

PdRuO2/PVP nanomaterial as a highly selective, stable, and applicable potentiometric sensor for the detection of Cr3+

Contact Info

Product

Resources

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Determination of chromium(III) in aqueous solution using CePO₄:Tb³⁺ nanocrystals in a fluorescence resonance energy transfer system