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Frag EY, Mohamed NM, Elashery SEA. Exploitation of o-benzoyl benzoic acid as an efficient electroactive material for selective determination of Cr (III) ions in pharmaceutical samples and industrial waste water using carbon sensor. Anal Chim Acta 2021; 1154:338322. [PMID: 33736802 DOI: 10.1016/j.aca.2021.338322] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2020] [Revised: 02/08/2021] [Accepted: 02/10/2021] [Indexed: 02/02/2023]
Abstract
Herein, for the first time, o-benzoyl benzoic acid has been explored as a promising electroactive material for the fabrication of sensitive, precise and accurate carbon paste electrode (CPE) for selective detection of Cr (III) ion. o-benzoyl benzoic acid (o-BBA) as a sensing material and tricresylphosphate (TCP) as a solvent mediator improved the developed sensor performance to get the Nernstian cationic slope of 20.03 ± 0.11 mV decade-1 within the concentration range of 5.0 × 10-7-1.0 × 10-1 mol L-1. The sensor displayed a fast response time of 12 s reflecting a pH independency over the pH range of 3.1-4.7. Moreover, the reaction between the sensing material and Cr (III) ion on the developed sensor surface was elucidated using the microscopic technique such as scanning electron microscope (SEM) in addition to the energy dispersive X-ray analyzer (EDX). The proposed sensor showed an adequate shelf lifetime (∼33 days). The values of potentiometric selectivity coefficient were obtained by fixed interference and separate solution methods affirming a high distinguishing power of the fabricated sensor toward Cr (III) ions over the other interfering ions. The established sensor could be utilized with a promising success for the Cr (III) ion estimation in the industrial waste water and in the pharmaceutical forms. Additionally, it has been employed as a promising indicator sensor with a superior performance for potentiometric titration of Cr (III) ion against EDTA.
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Affiliation(s)
- Eman Yossri Frag
- Chemistry Department, Faculty of Science, Cairo University, Gamaa Str., 12613, Giza, Egypt
| | | | - Sally E A Elashery
- Chemistry Department, Faculty of Science, Cairo University, Gamaa Str., 12613, Giza, Egypt.
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Frag EY, El-Zaher NA, Elashery SE. Carbon thick sheet potentiometric sensor for selective determination of silver ions in X-ray photographic film. Microchem J 2020. [DOI: 10.1016/j.microc.2020.104750] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Jaworska E, Caroleo F, Di Natale C, Maksymiuk K, Paolesse R, Michalska A. Si-corrole-based fluoride fluorometric turn-on sensor. J PORPHYR PHTHALOCYA 2020. [DOI: 10.1142/s1088424620500029] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
We present here a new type of fluoride ion optode, constituted by a highly lipophilic PVDF porous membrane modified with a liquid receptor layer containing the emission-active Si corrole F[Formula: see text] selective ionophore. For the optimized composition of the receptor layer, in acidic solutions an increase of Si-corrole emission was observed by increasing fluoride ion concentration, a behavior different from most porphyrinoid-based optical sensors. An observed linear dependence of the Si corrole emission intensity (read at 635 nm) was within the range 10[Formula: see text] to 10[Formula: see text] M of fluoride ions.
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Affiliation(s)
- Ewa Jaworska
- Department of Chemistry, University of Warsaw, Warsaw, Poland
| | - Fabrizio Caroleo
- Department of Chemical Science and Technologies, University of Rome Tor Vergata, Rome, Italy
| | - Corrado Di Natale
- Department of Electronic Engineering, University of Rome Tor Vergata, Rome, Italy
| | | | - Roberto Paolesse
- Department of Chemical Science and Technologies, University of Rome Tor Vergata, Rome, Italy
| | - Agata Michalska
- Department of Chemistry, University of Warsaw, Warsaw, Poland
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Baranowska-Korczyc A, Maksymiuk K, Michalska A. Electrospun nanofiber supported optodes: scaling down the receptor layer thickness to nanometers – towards 2D optodes. Analyst 2019; 144:4667-4676. [DOI: 10.1039/c9an00756c] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
A novel type of optode sensor is proposed using electrospun nanofibers as the supporting inert material.
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Nagy X, Höfler L. Lowering Detection Limits Toward Target Ions Using Quasi-Symmetric Polymeric Ion-Selective Membranes Combined with Amperometric Measurements. Anal Chem 2016; 88:9850-9855. [DOI: 10.1021/acs.analchem.6b03043] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Xénia Nagy
- Department of Inorganic
and
Analytical Chemistry, Budapest University of Technology and Economics, Szt. Gellért tér 4, Budapest, 1111, Hungary
| | - Lajos Höfler
- Department of Inorganic
and
Analytical Chemistry, Budapest University of Technology and Economics, Szt. Gellért tér 4, Budapest, 1111, Hungary
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Rich M, Mendecki L, Mensah ST, Blanco-Martinez E, Armas S, Calvo-Marzal P, Radu A, Chumbimuni-Torres KY. Circumventing Traditional Conditioning Protocols in Polymer Membrane-Based Ion-Selective Electrodes. Anal Chem 2016; 88:8404-8. [DOI: 10.1021/acs.analchem.6b01542] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Michelle Rich
- Department
of Chemistry, P.O. Box 25000, University of Central Florida, Orlando, Florida 32816-2366, United States
| | - Lukasz Mendecki
- Lennard-Jones
Laboratories, Birchall Centre, Keele University, Keele, Staffordshire ST5 5BG, United Kingdom
| | - Samantha T. Mensah
- Department
of Chemistry, P.O. Box 25000, University of Central Florida, Orlando, Florida 32816-2366, United States
| | - Enrique Blanco-Martinez
- Department
of Chemistry, P.O. Box 25000, University of Central Florida, Orlando, Florida 32816-2366, United States
| | - Stephanie Armas
- Department
of Chemistry, P.O. Box 25000, University of Central Florida, Orlando, Florida 32816-2366, United States
| | - Percy Calvo-Marzal
- Department
of Chemistry, P.O. Box 25000, University of Central Florida, Orlando, Florida 32816-2366, United States
| | - Aleksandar Radu
- Lennard-Jones
Laboratories, Birchall Centre, Keele University, Keele, Staffordshire ST5 5BG, United Kingdom
| | - Karin Y. Chumbimuni-Torres
- Department
of Chemistry, P.O. Box 25000, University of Central Florida, Orlando, Florida 32816-2366, United States
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Ghahraman Afshar M, Crespo GA, Bakker E. Direct Ion Speciation Analysis with Ion-Selective Membranes Operated in a Sequential Potentiometric/Time Resolved Chronopotentiometric Sensing Mode. Anal Chem 2012; 84:8813-21. [DOI: 10.1021/ac302092m] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Majid Ghahraman Afshar
- Department of Inorganic
and Analytical Chemistry, University of Geneva, Quai Ernest-Ansermet 30, CH-1211
Geneva, Switzerland
| | - Gastón A. Crespo
- Department of Inorganic
and Analytical Chemistry, University of Geneva, Quai Ernest-Ansermet 30, CH-1211
Geneva, Switzerland
| | - Eric Bakker
- Department of Inorganic
and Analytical Chemistry, University of Geneva, Quai Ernest-Ansermet 30, CH-1211
Geneva, Switzerland
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Synthesis and Characterization of Organic-Inorganic Nanocomposite Poly-o-anisidine Sn(IV) Arsenophosphate: Its Analytical Applications as Pb(II) Ion-Selective Membrane Electrode. Int J Anal Chem 2009; 2009:659215. [PMID: 20140082 PMCID: PMC2814226 DOI: 10.1155/2009/659215] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2008] [Revised: 04/15/2009] [Accepted: 05/29/2009] [Indexed: 11/23/2022] Open
Abstract
Poly-o-anisidine Sn(IV) arsenophosphate is a newly synthesized nanocomposite material and has been characterized on the basis of its chemical composition, ion exchange capacity, TGA-DTA, FTIR, X-RAY, SEM, and TEM studies. On the basis of distribution studies, the exchanger was found to be highly selective for lead that is an environmental pollutant. For the detection of lead in water a heterogeneous precipitate based ion-selective membrane electrode was developed by means of this composite cation exchanger as electroactive material. The membrane electrode is mechanically stable, with a quick response time, and can be operated over a wide pH range. The selectivity coefficients were determined by mixed solution method and revealed that the electrode is sensitive for Pb(II) in presence of interfering cations. The practical utility of this membrane electrode has been established by employing it as an indicator electrode in the potentiometric titration of Pb(II).
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Xu Y, Ngeontae W, Pretsch E, Bakker E. Backside calibration chronopotentiometry: using current to perform ion measurements by zeroing the transmembrane ion flux. Anal Chem 2008; 80:7516-23. [PMID: 18778039 PMCID: PMC2597783 DOI: 10.1021/ac800774e] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A recent new direction in ion-selective electrode (ISE) research utilizes a stir effect to indicate the disappearance of an ion concentration gradient across a thin ion-selective membrane. This zeroing experiment allows one to evaluate the equilibrium relationship between front and backside solutions contacting the membrane by varying the backside solution composition. This method is attractive since the absolute potential during the measurement is not required, thus avoiding standard recalibrations from the sample solution and a careful control of the reference electrode potential. We report here on a new concept to alleviate the need to continuously vary the composition of the backside solution. Instead, transmembrane ion fluxes are counterbalanced at an imposed critical current. A theoretical model illustrates the relationship between the magnitude of this critical current and the concentration of analyte and countertransporting ions and is found to correspond well with experimental results. The approach is demonstrated with lead(II)-selective membranes and protons as dominating interference ions, and the concentration of Pb(2+) was successfully measured in tap water samples. The principle was further evaluated with calcium-selective membranes and magnesium as counterdiffusing species, with good results. Advantages and limitations arising from the kinetic nature of the perturbation technique are discussed.
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Affiliation(s)
- Yida Xu
- Department of Chemistry, Purdue University, West Lafayette, Indiana 47907, USA
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Affiliation(s)
- Benjamin J Privett
- Department of Chemistry, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599, USA
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