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Zareh M, Ahmed R, Saleem N, Abd-ElSattar A. Graphene oxide versus activated charcoal for La-electrochemical sensor. MATERIALS SCIENCE AND ENGINEERING: B 2023; 292:116389. [DOI: 10.1016/j.mseb.2023.116389] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/02/2023]
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2
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Aggarwal R, Hooda M, Kumar P, Sumran G. Solvent-free, Silica Catalyzed Intriguing Conversion of 3-Hydrazonobutan-2-one Oxime into Biacetyl Bis-hydrazone Schiff Bases. LETT ORG CHEM 2020. [DOI: 10.2174/1570178617999200818210859] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
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An expeditious and operationally simple reaction between 3-hydrazonobutan-2-one oxime and different substituted benzaldehydes in presence of silica afforded an unexpected product, biacetyl bis-hydrazone Schiff bases in good yield
on grinding in a mortar at room temperature, instead of expected product 3-(aryl)methylenehydrazonobutan-2-one oxime.
Mild reaction conditions involving recyclable mineral support silica, environmentally benign and good yield in short reaction time are remarkable advantages of this protocol. Products were characterized by IR, NMR (1H and 13C) and elemental
analyses.
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Affiliation(s)
- Ranjana Aggarwal
- Department of Chemistry, Kurukshetra University, Kurukshetra 136119, Haryana, India
| | - Mona Hooda
- Department of Chemistry, Kurukshetra University, Kurukshetra 136119, Haryana, India
| | - Prince Kumar
- Department of Chemistry, Kurukshetra University, Kurukshetra 136119, Haryana, India
| | - Garima Sumran
- Department of Chemistry, D. A. V. College (Lahore), Ambala City 134 003, Haryana, India
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Oiye ÉN, Ribeiro MFM, Katayama JMT, Tadini MC, Balbino MA, Eleotério IC, Magalhães J, Castro AS, Silva RSM, da Cruz Júnior JW, Dockal ER, de Oliveira MF. Electrochemical Sensors Containing Schiff Bases and their Transition Metal Complexes to Detect Analytes of Forensic, Pharmaceutical and Environmental Interest. A Review. Crit Rev Anal Chem 2019; 49:488-509. [PMID: 30767567 DOI: 10.1080/10408347.2018.1561242] [Citation(s) in RCA: 38] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
Schiff bases and their transition metal complexes are inexpensive and easy to synthesize. These compounds display several structural and electronic features that allow their application in numerous research fields. Over the last three decades, electroanalytical scientists of various areas have developed electrochemical sensors from many compounds. The present review discusses the applicability of Schiff bases, their transition metal complexes and new materials containing these compounds as electrode modifiers in sensors to detect analytes of forensic, pharmaceutical and environmental interest. In forensic sciences, Schiff bases are mainly used to analyze illicit drugs: chemical reactions involving Schiff bases can help to elucidate illicit drug production and to determine analytes in seized samples. In the environmental area, given that most methodologies provide Limit of Detection (LOD) values below the values recommended by regulatory agencies, Schiff bases constitute a promising strategy. As for pharmaceutical applications, Schiff bases represent an approach for analysis of complex biological samples containing low levels of the target analytes in the presence of a large quantity of interfering compounds. This review will show that new highly specific materials can be synthesized based on Schiff bases and applied in the pharmaceutical industry, toxicological studies, electrocatalysis and biosensors. Most literature papers have reported on Schiff bases combined with carbon paste to give a chemically modified electrode that is easy and inexpensive to produce and which displays specific and selective sensing capacity for different applications.
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Affiliation(s)
- Érica Naomi Oiye
- Departamento de Química - Faculdade de Filosofia, Ciências e Letras de Ribeirão Preto, Universidade de São Paulo , Ribeirão Preto , São Paulo , Brasil
| | - Maria Fernanda Muzetti Ribeiro
- Departamento de Química - Faculdade de Filosofia, Ciências e Letras de Ribeirão Preto, Universidade de São Paulo , Ribeirão Preto , São Paulo , Brasil
| | - Juliana Midori Toia Katayama
- Departamento de Química - Faculdade de Filosofia, Ciências e Letras de Ribeirão Preto, Universidade de São Paulo , Ribeirão Preto , São Paulo , Brasil
| | - Maraine Catarina Tadini
- Departamento de Química - Faculdade de Filosofia, Ciências e Letras de Ribeirão Preto, Universidade de São Paulo , Ribeirão Preto , São Paulo , Brasil
| | - Marco Antonio Balbino
- Departamento de Química - Faculdade de Filosofia, Ciências e Letras de Ribeirão Preto, Universidade de São Paulo , Ribeirão Preto , São Paulo , Brasil
| | - Izabel Cristina Eleotério
- Departamento de Química - Faculdade de Filosofia, Ciências e Letras de Ribeirão Preto, Universidade de São Paulo , Ribeirão Preto , São Paulo , Brasil
| | - Juliana Magalhães
- Departamento de Química - Faculdade de Filosofia, Ciências e Letras de Ribeirão Preto, Universidade de São Paulo , Ribeirão Preto , São Paulo , Brasil
| | - Alex Soares Castro
- Departamento de Química - Faculdade de Filosofia, Ciências e Letras de Ribeirão Preto, Universidade de São Paulo , Ribeirão Preto , São Paulo , Brasil
| | - Ricardo Soares Mota Silva
- Departamento de Química - Faculdade de Filosofia, Ciências e Letras de Ribeirão Preto, Universidade de São Paulo , Ribeirão Preto , São Paulo , Brasil
| | - José Wilmo da Cruz Júnior
- Departamento de Ciências Exatas e Educação, Universidade Federal de Santa Catarina , Blumenau , Santa Catarina , Brasil
| | - Edward Ralph Dockal
- Departamento de Química - Centro de Ciências Exatas e de Tecnologia, Universidade Federal de São Carlos , São Carlos , São Paulo , Brasil
| | - Marcelo Firmino de Oliveira
- Departamento de Química - Faculdade de Filosofia, Ciências e Letras de Ribeirão Preto, Universidade de São Paulo , Ribeirão Preto , São Paulo , Brasil
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A sensitive nano-sensor based on synthetic ligand-coated CdTe quantum dots for rapid detection of Cr(III) ions in water and wastewater samples. Colloid Polym Sci 2018. [DOI: 10.1007/s00396-018-4375-y] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
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Nezhadali A, Esfandiari M. Preparation of a ticlopidine potentiometric sensor and its application to pharmaceutical and biological analysis. J Electroanal Chem (Lausanne) 2016. [DOI: 10.1016/j.jelechem.2016.03.026] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Taher MA, Fayazi M, Pooramiri B, Ghanei-Motlagh M, Dorehgiraee A. Lanthanum-selective sensors based on 3-amino-2-mercapto-3H-quinazolin-4-one in PVC matrix. JOURNAL OF THE IRANIAN CHEMICAL SOCIETY 2012. [DOI: 10.1007/s13738-012-0136-x] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Mohamad Ali AS, Abdul Razak N, Ab Rahman I. Bach adsorption study for the extraction of silver ions by hydrazone compounds from aqueous solution. ScientificWorldJournal 2012; 2012:351967. [PMID: 22629138 PMCID: PMC3353305 DOI: 10.1100/2012/351967] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2011] [Accepted: 12/25/2011] [Indexed: 11/17/2022] Open
Abstract
Sorbent materials based on a hydrazone Schiff base compound, C14H11BrN4O4, were prepared either by immobilizing the ligand into sol-gel (SG1) or bonding to silica (SG2). The sorbent materials were characterized by FT-IR, EDX, SEM, TEM, and TGA. The sorption characteristics of a matrix of eight transition metal ions (Ag+, Cu2+, Co2+, Ni2+, Fe3+, Pb2+, Zn2+, and Mn2+) using batch method were studied. Several key parameters that affected the extraction efficiency such as pH, contact time, metal ions concentration, and gel size (for SGl) were investigated and optimized. Under the optimized conditions, the physically immobilized hydrazone sorbent (SG1) exhibits highest selectivity towards Ag+ ions, while the chemically bonded hydrazone sorbent (SG2) exhibits high extraction for all metal ions tested. However, for practical applications such as the removal and preconcentration of Ag+, the physically immobilized sorbent (SG1) is preferred.
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Investigation of Yb(III)–PVC membrane interfacial interaction by semiempirical PM6/SPARKLE method based on 1,10-phenanthroline-5,6-dione as a suitable neutral ionophore. J Colloid Interface Sci 2011; 354:268-74. [DOI: 10.1016/j.jcis.2010.09.064] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2010] [Revised: 09/21/2010] [Accepted: 09/22/2010] [Indexed: 11/22/2022]
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Mittal SK, Kumar R, Dogra P, Sharma HK. Potentiometric determination of dysprosium(III) ion using zirconium(IV) antimonomolybdate as an electroactive material. JOURNAL OF ANALYTICAL CHEMISTRY 2010. [DOI: 10.1134/s1061934810100102] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Chandra S, Singh DR. Development of Pr(III) Selective Electrode Using 1,6,7,12-Tetramine-2,5,8,11-tetraoxo-1(12),6(7)-di(biphenyl)-dodecane (TATODBDD) as a Neutral Carrier. CHINESE J CHEM 2010. [DOI: 10.1002/cjoc.201090154] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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Faridbod F, Ganjali MR, Labbafi S, Norouzi P. Lanthanide Recognition: Development of an Asymetric Gadolinium Microsensor Based on N-(2-pyridyl)-N′-(4-nitrophenyl)thiourea. ANAL LETT 2008. [DOI: 10.1080/00032710802440525] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Ganjali MR, Norouzi P, Farrokhi R, Faridbod F, Larijani B, Meghdadi S. Lanthanide Recognition: Determination of Thulium(III) Ions in Presence of Other Rare Earth Elements by a Thulium(III) Sensor Based on 4-Methyl-1,2-Bis(2-Pyridinecarboxamido)benzene as a Sensing Material. ANAL LETT 2008. [DOI: 10.1080/00032710802350484] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Faridbod F, Norouzi P, Dinarvand R, Ganjali MR. Developments in the Field of Conducting and Non-conducting Polymer Based Potentiometric Membrane Sensors for Ions Over the Past Decade. SENSORS (BASEL, SWITZERLAND) 2008; 8:2331-2412. [PMID: 27879825 PMCID: PMC3673421 DOI: 10.3390/s8042331] [Citation(s) in RCA: 55] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/01/2008] [Accepted: 04/02/2008] [Indexed: 12/07/2022]
Abstract
Many research studies have been conducted on the use of conjugated polymers in the construction of chemical sensors including potentiometric, conductometric and amperometric sensors or biosensors over the last decade. The induction of conductivity on conjugated polymers by treating them with suitable oxidizing agents won Heeger, MacDiarmid and Shirakawa the 2000 Nobel Prize in Chemistry. Common conjugated polymers are poly(acetylene)s, poly(pyrrole)s, poly(thiophene)s, poly(terthiophene)s, poly(aniline)s, poly(fluorine)s, poly(3-alkylthiophene)s, polytetrathiafulvalenes, polynapthalenes, poly(p-phenylene sulfide), poly(p-phenylenevinylene)s, poly(3,4-ethylenedioxythiophene), polyparaphenylene, polyazulene, polyparaphenylene sulfide, polycarbazole and polydiaminonaphthalene. More than 60 sensors for inorganic cations and anions with different characteristics based on conducting polymers have been reported. There have also been reports on the application of non-conducting polymers (nCPs), i.e. PVC, in the construction of potentiometric membrane sensors for determination of more than 60 inorganic cations and anions. However, the leakage of ionophores from the membranes based on these polymers leads to relatively lower life times. In this article, we try to give an overview of Solid-Contact ISE (SCISE), Single-Piece ISE (SPISE), Conducting Polymer (CP)-Based, and also non-conducting polymer PVC-based ISEs for various ions which their difference is in the way of the polymer used with selective membrane. In SCISEs and SPISEs, the plasticized PVC containing the ionophore and ionic additives govern the selectivity behavior of the electrode and the conducting polymer is responsible of ion-to-electron transducer. However, in CPISEs, the conducting polymer layer is doped with a suitable ionophore which enhances the ion selectivity of the CP while its redox response has to be suppressed.
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Affiliation(s)
- Farnoush Faridbod
- Center of Excellence in Electrochemistry, Faculty of Chemistry, University of Tehran, Tehran, Iran
| | - Parviz Norouzi
- Center of Excellence in Electrochemistry, Faculty of Chemistry, University of Tehran, Tehran, Iran
| | - Rassoul Dinarvand
- Medical Nanotechnology Research Centre, Medical Sciences/University of Tehran, Tehran, P.O. Box 14155-6451, Iran
| | - Mohammad Reza Ganjali
- Center of Excellence in Electrochemistry, Faculty of Chemistry, University of Tehran, Tehran, Iran.
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Faridbod F, Ganjali MR, Dinarvand R, Norouzi P, Riahi S. Schiff's Bases and Crown Ethers as Supramolecular Sensing Materials in the Construction of Potentiometric Membrane Sensors. SENSORS (BASEL, SWITZERLAND) 2008; 8:1645-1703. [PMID: 27879786 PMCID: PMC3663017 DOI: 10.3390/s8031645] [Citation(s) in RCA: 138] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/31/2007] [Accepted: 02/22/2008] [Indexed: 12/07/2022]
Abstract
Ionophore incorporated PVC membrane sensors are well-established analyticaltools routinely used for the selective and direct measurement of a wide variety of differentions in complex biological and environmental samples. Potentiometric sensors have someoutstanding advantages including simple design and operation, wide linear dynamic range,relatively fast response and rational selectivity. The vital component of such plasticizedPVC members is the ionophore involved, defining the selectivity of the electrodes' complexformation. Molecular recognition causes the formation of many different supramolecules.Different types of supramolecules, like calixarenes, cyclodextrins and podands, have beenused as a sensing material in the construction of ion selective sensors. Schiff's bases andcrown ethers, which feature prominently in supramolecular chemistry, can be used assensing materials in the construction of potentiometric ion selective electrodes. Up to now,more than 200 potentiometric membrane sensors for cations and anions based on Schiff's bases and crown ethers have been reported. In this review cation binding and anioncomplexes will be described. Liquid membrane sensors based on Schiff's bases and crownethers will then be discussed.
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Affiliation(s)
- Farnoush Faridbod
- Center of Excellence in Electrochemistry, Faculty of Chemistry, University of Tehran, Tehran, Iran
| | - Mohammad Reza Ganjali
- Center of Excellence in Electrochemistry, Faculty of Chemistry, University of Tehran, Tehran, Iran.
| | - Rassoul Dinarvand
- Medical Nanotechnology Research Centre, Medical Sciences/University of Tehran, Tehran, P.O. Box 14155-6451, Iran
| | - Parviz Norouzi
- Center of Excellence in Electrochemistry, Faculty of Chemistry, University of Tehran, Tehran, Iran
| | - Siavash Riahi
- Institute of Petroleum Engineering, Faculty of Engineering, University of Tehran, Tehran, P.O. Box 14155-6455, Iran
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Reza Ganjali M, Norouzi P, Faridbod F, Hajiabdollah N, Dinarvand R, Meghdadi S. Lutetium(III) Ions Determination in Biological and Environmental Samples by a Lutetium(III) Sensor Based onN,N′‐bis(2‐Pyridinecarboxamide)‐1,3‐benzene as a Sensing Material. ANAL LETT 2008. [DOI: 10.1080/00032710701746824] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Faridbod F, Ganjali MR, Larijani B, Norouzi P, Riahi S, Mirnaghi FFS. Lanthanide Recognition: an Asymetric Erbium Microsensor Based on a Hydrazone Derivative. SENSORS (BASEL, SWITZERLAND) 2007; 7:3119-3135. [PMID: 28903283 PMCID: PMC3841884 DOI: 10.3390/s7123119] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/09/2007] [Accepted: 10/25/2007] [Indexed: 11/16/2022]
Abstract
N'-(2-hydroxy-1,2-diphenylethylidene)benzohydrazide (HDB) was found tohave a very selective and sensitive behavior towards erbium(III) ions, in comparison tothirteen lanthanide ions, inner transition and representative metal ions and was hence usedas a neutral ion carrier in construction of an Er(III) microelectrode. Theoretical calculationsand conductance studies of HDB to erbium and some other metal ions were carried out andconfirmed selectivity toward Er(III) ions.The best performance was obtained with a membrane contain 3% potassium tetrakis(p-chlorophenyl)borate (KTpClPB) as an anionic additive, 72% dibutyl phthalate (DBP) assolvent mediator, 5% HDB, and 20% poly(vinyl chloride) (PVC). The proposed Er(III)microelectrode exhibits a near Nernstian response of 17.5±0.5 mV per decade of erbiumactivity, and a very wide linear range 1.0×10-3-3.0×10-10 M. It can work well in the pHrange of 3.0-9.0. The lower detection limit (LDL) of the microelectrode was calculated tobe 2.0×10-10 M.
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Affiliation(s)
- Farnoush Faridbod
- Center of Excellence in Electrochemistry, Faculty of Chemistry, University of Tehran, Tehran, Iran
| | - Mohammad Reza Ganjali
- Center of Excellence in Electrochemistry, Faculty of Chemistry, University of Tehran, Tehran, Iran.
| | - Bagher Larijani
- Endocrinology & Metabolism Research Center, Medical Sciences/ University of Tehran, Tehran, Iran
| | - Parviz Norouzi
- Center of Excellence in Electrochemistry, Faculty of Chemistry, University of Tehran, Tehran, Iran
| | - S Riahi
- Institute of Petroleum Engineering, Faculty of Engineering, University of Tehran, Tehran, Iran
| | - F Fatemeh Sadat Mirnaghi
- Center of Excellence in Electrochemistry, Faculty of Chemistry, University of Tehran, Tehran, Iran
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Ganjali MR, Norouzi P, Faridbod F, Hajiabdollah N, Larijani B, Hanifehpour Y. Procaine as a Sensing Material for Determination of Dysprosium(III) Ions in Presence of Other Rare‐earth Elements in Biological and Environmental Samples. ANAL LETT 2007. [DOI: 10.1080/00032710701585057] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Singh AK, Jain AK, Mehtab S. Ytterbium-selective polymeric membrane electrode based on substituted urea and thiourea as a suitable carrier. Anal Chim Acta 2007; 597:322-30. [PMID: 17683746 DOI: 10.1016/j.aca.2007.06.052] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2007] [Revised: 06/21/2007] [Accepted: 06/25/2007] [Indexed: 10/23/2022]
Abstract
Plasticized membranes using 1-phenyl-3-(2-thiazolyl)-2-thiourea (PTT) and 1-phenyl-3-(2-thiazolyl)-2-urea (PTU) have been prepared and explored as ytterbium ion-selective sensors. Effect of various plasticizers, viz. chloronaphthalene (CN), o-nitrophenyloctyl ether (o-NPOE), dibutylphthalate (DBP), dioctylsebacate (DOS) and anion excluders, sodium tetraphenylborate (NaTPB) and oleic acid (OA) was studied and improved membrane performance was observed. Optimum performance was noted with membrane of PTT having composition of PTT (3.5):PVC (80):DOS (160):NaTPB (1.5) in mg. The sensor works satisfactorily in the concentration range 1.2x10(-7) to 1.0x10(-2) M (detection limit 5.5x10(-8) M) with a Nernstian slope of 19.7 mV decade(-1) of activity. Wide pH range (3.0-8.0), fast response time (10 s), non-aqueous tolerance (up to 20%) and adequate shelf life (12 weeks) indicate the vital utility of the proposed sensor. The proposed electrode comparatively shows good selectivity for Yb3+ ion with respect to alkali, alkaline earth, transition and rare earth metals ions and can be used for its determination in binary mixtures and sulfite determination in white and red wine samples.
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Affiliation(s)
- A K Singh
- Department of Chemistry, Indian Institute of Technology-Roorkee, Roorkee 247667, India.
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Ganjali M, Norouzi P, Akbari-Adergani B. Thulium(III) Ions Monitoring by a Novel Thulium(III) Microelectrode Based on a S-N Schiff Base. ELECTROANAL 2007. [DOI: 10.1002/elan.200603833] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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Zamani HA, Rajabzadeh G, Ganjali MR. A New Europium(III) PVC Membrane Potentiometric Sensor Based on 4-(2-Hydroxybenzylideneamino)-6-methyl-3-thioxo-3,4-dihydro-1,2,4-triazin-5(2H)-one. BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN 2007. [DOI: 10.1246/bcsj.80.172] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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Zamani H, Abedini-Torghabeh J, Ganjali M. A Highly Selective and Sensitive Barium(II)-Selective PVC Membrane Based on Dimethyl 1-Acetyl-8-oxo-2,8-dihydro- 1H-pyra-zolo[5,1-a]isoindole-2,3-dicarboxylate. ELECTROANAL 2006. [DOI: 10.1002/elan.200503472] [Citation(s) in RCA: 50] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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Singh AK, Saxena P, Mehtab S, Gupta B. A Selective Membrane Electrode for Lanthanum(III) Ion Based on a Hexaaza Macrocycle Derivative as Ionophore. ANAL SCI 2006; 22:1339-44. [PMID: 17038773 DOI: 10.2116/analsci.22.1339] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
We have developed a highly La(III)-selective PVC membrane electrode based on a hexaaza macrocycle, 8,16-dimethyl-6,14-diphenyl-2,3,4:10,11,12-dipyridine-1,3,5,9,11,13-hexaazacyclohexadeca-3,5,8,11,13,16-hexaene [Bzo2Me2Pyo2(16)-hexaeneN6] (I) as membrane carrier, dibutylbutyl phosphonate (DBBP) as solvent mediator and sodium tetraphenylborate (NaTPB) as lipophilic additive. The best performance was given by the membrane of macrocycle I having a composition 10:260:5:120 (I:DBBP:NaTPB:PVC). The electrode exhibits a Nernstian response to La(III) ion in the concentration range 1.0x10(-1)-7.94x10(-7) M with a slope of 19.8+/-0.2 mV/decade of concentration and a detection limit of 5.62x10(-7) M. The response time of the sensor is 12 s and it can be used over a period of 4 months with good reproducibility. The electrode works well over a pH range of 2.5-10.0 and in partially non-aqueous medium with up to 30% organic content. The sensor was also used as an indicator electrode in potentiometric titration of La(III) ions with EDTA and for determining La(III) concentration in real samples.
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Affiliation(s)
- Ashok Kumar Singh
- Department of Chemistry, Indian Institute of Technology-Roorkee, India.
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Jain A, Singh A, Mehtab S, Saxena P. Rubeanic acid as novel carrier in construction of selective membrane sensor for La(III). Anal Chim Acta 2005. [DOI: 10.1016/j.aca.2005.07.016] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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