New thiocyanate potentiometric sensors based on sulfadimidine metal complexes: Experimental and theoretical studies

Ola R. Shehab; Ahmed M. Mansour

doi:10.1016/j.bios.2014.01.051

New thiocyanate potentiometric sensors based on sulfadimidine metal complexes: Experimental and theoretical studies

Ola R. Shehab, Ahmed M. Mansour

Research output: Contribution to journal › Article › peer-review

22 Citations (Scopus)

Abstract

Three sulfadimidine metal complexes (MFe(III), Cu(II), and Ag(I)) were prepared, characterized, and examined as neutral carriers for the determination of SCN^- using modified carbon paste electrode. These sensors were successfully applied in the pure samples, and biological fluids. The electrode mechanism was investigated by UV-vis and FT IR. The experimental studies were complemented by quantum chemical calculations at DFT/B3LYP level of theory. The best performance was observed for Cu(II) electrode (C) containing 7.0% complex, 53.0% o-nitrophenyloctyl ether, 37.0% graphite and 3.0% cetylpyridinium chloride, and also for Fe(III)-electrode (A) having 6.0% complex, 52.0% o-nitro phenyloctyl ether, 40.5% graphite and 2.5% cetylpyridinium chloride.

Original language	English
Pages (from-to)	77-84
Number of pages	8
Journal	Biosensors and Bioelectronics
Volume	57
DOIs	https://doi.org/10.1016/j.bios.2014.01.051
Publication status	Published - Jul 15 2014
Externally published	Yes

Keywords

Complexes
DFT
Modified carbon paste
Potentiometry
Sulfadimidine
Thiocyanate

ASJC Scopus subject areas

Biotechnology
Biophysics
Biomedical Engineering
Electrochemistry

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10.1016/j.bios.2014.01.051

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title = "New thiocyanate potentiometric sensors based on sulfadimidine metal complexes: Experimental and theoretical studies",

abstract = "Three sulfadimidine metal complexes (MFe(III), Cu(II), and Ag(I)) were prepared, characterized, and examined as neutral carriers for the determination of SCN- using modified carbon paste electrode. These sensors were successfully applied in the pure samples, and biological fluids. The electrode mechanism was investigated by UV-vis and FT IR. The experimental studies were complemented by quantum chemical calculations at DFT/B3LYP level of theory. The best performance was observed for Cu(II) electrode (C) containing 7.0% complex, 53.0% o-nitrophenyloctyl ether, 37.0% graphite and 3.0% cetylpyridinium chloride, and also for Fe(III)-electrode (A) having 6.0% complex, 52.0% o-nitro phenyloctyl ether, 40.5% graphite and 2.5% cetylpyridinium chloride.",

keywords = "Complexes, DFT, Modified carbon paste, Potentiometry, Sulfadimidine, Thiocyanate",

author = "Shehab, {Ola R.} and Mansour, {Ahmed M.}",

year = "2014",

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day = "15",

doi = "10.1016/j.bios.2014.01.051",

language = "English",

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journal = "Biosensors and Bioelectronics",

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T1 - New thiocyanate potentiometric sensors based on sulfadimidine metal complexes

T2 - Experimental and theoretical studies

AU - Shehab, Ola R.

AU - Mansour, Ahmed M.

PY - 2014/7/15

Y1 - 2014/7/15

N2 - Three sulfadimidine metal complexes (MFe(III), Cu(II), and Ag(I)) were prepared, characterized, and examined as neutral carriers for the determination of SCN- using modified carbon paste electrode. These sensors were successfully applied in the pure samples, and biological fluids. The electrode mechanism was investigated by UV-vis and FT IR. The experimental studies were complemented by quantum chemical calculations at DFT/B3LYP level of theory. The best performance was observed for Cu(II) electrode (C) containing 7.0% complex, 53.0% o-nitrophenyloctyl ether, 37.0% graphite and 3.0% cetylpyridinium chloride, and also for Fe(III)-electrode (A) having 6.0% complex, 52.0% o-nitro phenyloctyl ether, 40.5% graphite and 2.5% cetylpyridinium chloride.

AB - Three sulfadimidine metal complexes (MFe(III), Cu(II), and Ag(I)) were prepared, characterized, and examined as neutral carriers for the determination of SCN- using modified carbon paste electrode. These sensors were successfully applied in the pure samples, and biological fluids. The electrode mechanism was investigated by UV-vis and FT IR. The experimental studies were complemented by quantum chemical calculations at DFT/B3LYP level of theory. The best performance was observed for Cu(II) electrode (C) containing 7.0% complex, 53.0% o-nitrophenyloctyl ether, 37.0% graphite and 3.0% cetylpyridinium chloride, and also for Fe(III)-electrode (A) having 6.0% complex, 52.0% o-nitro phenyloctyl ether, 40.5% graphite and 2.5% cetylpyridinium chloride.

KW - Complexes

KW - DFT

KW - Modified carbon paste

KW - Potentiometry

KW - Sulfadimidine

KW - Thiocyanate

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JO - Biosensors and Bioelectronics

JF - Biosensors and Bioelectronics

ER -

New thiocyanate potentiometric sensors based on sulfadimidine metal complexes: Experimental and theoretical studies

Abstract

Keywords

ASJC Scopus subject areas

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