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Zinc phthalocyanine anchored magnetite particles: Efficient platform for sensing of thiocyanate. J Electroanal Chem (Lausanne) 2021. [DOI: 10.1016/j.jelechem.2021.115385] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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2
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Cui X, Wei T, Hao M, Qi Q, Wang H, Dai Z. Highly sensitive and selective colorimetric sensor for thiocyanate based on electrochemical oxidation-assisted complexation reaction with Gold nanostars etching. JOURNAL OF HAZARDOUS MATERIALS 2020; 391:122217. [PMID: 32062538 DOI: 10.1016/j.jhazmat.2020.122217] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/03/2019] [Revised: 01/29/2020] [Accepted: 01/31/2020] [Indexed: 05/18/2023]
Abstract
In this work, we developed an electrochemical oxidation-assisted complexation strategy for highly sensitive and selective detection of thiocyanate (SCN-). Gold nanostars (AuNSs) with uniform and sharp tips were first prepared, and we found they can be quickly etched to gold nanoparticles (AuNPs) under electrochemical oxidation with the existence of halide and halogen-like ions. Through introducing SCN--selective molecule: zinc phthalocyanine (ZnPc), the fabricated ZnPc-AuNSs/ITO electrode can rapidly and selectively response to SCN- under electrochemical oxidation, manifesting as a noticeable change in color from navy blue to red. Thus SCN- concentration can be easily reflected. The wide wavelength tuning range of AuNSs to AuNPs make the ZnPc-AuNSs/ITO sensor obtain a much wider detection range for SCN- (10 nM to 80 mM) than most other reported studies. In addition, the detection limit is as low as 3 nM. It renders the sensor to be easily used in much diluted matrixes, which can further lower the interference. We further applied the colorimetric sensor to SCN- detection in wastewater and milk, excellent performance was obtained. The proposed electrochemical oxidation-assisted complexation strategy will have good promise in developing colorimetric sensors with high selectivity and wide detection range, and will display more useful application in environmental monitoring.
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Affiliation(s)
- Xinwen Cui
- Jiangsu Collaborative Innovation Centre of Biomedical Functional Materials and Jiangsu Key Laboratory of Biofunctional Materials, School of Chemistry and Materials Science, Nanjing Normal University, Nanjing, 210023, People's Republic of China
| | - Tianxiang Wei
- School of Environment, Nanjing Normal University, Nanjing, 210023, People's Republic of China
| | - Mengyuan Hao
- Jiangsu Collaborative Innovation Centre of Biomedical Functional Materials and Jiangsu Key Laboratory of Biofunctional Materials, School of Chemistry and Materials Science, Nanjing Normal University, Nanjing, 210023, People's Republic of China
| | - Qi Qi
- School of Environment, Nanjing Normal University, Nanjing, 210023, People's Republic of China
| | - Huafeng Wang
- Jiangsu Collaborative Innovation Centre of Biomedical Functional Materials and Jiangsu Key Laboratory of Biofunctional Materials, School of Chemistry and Materials Science, Nanjing Normal University, Nanjing, 210023, People's Republic of China
| | - Zhihui Dai
- Jiangsu Collaborative Innovation Centre of Biomedical Functional Materials and Jiangsu Key Laboratory of Biofunctional Materials, School of Chemistry and Materials Science, Nanjing Normal University, Nanjing, 210023, People's Republic of China; Nanjing Normal University Center for Analysis and Testing, Nanjing, 210023, People's Republic of China.
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Urbanowicz M, Sadowska K, Pijanowska DG, Pomećko R, Bocheńska M. Potentiometric Solid-Contact Ion-Selective Electrode for Determination of Thiocyanate in Human Saliva. SENSORS (BASEL, SWITZERLAND) 2020; 20:E2817. [PMID: 32429165 PMCID: PMC7288078 DOI: 10.3390/s20102817] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/08/2020] [Revised: 05/06/2020] [Accepted: 05/12/2020] [Indexed: 12/13/2022]
Abstract
A new solid-contact potentiometric ion-selective electrode for the determination of SCN- (SCN-ISE) has been described. Synthesized phosphonium derivative of calix[4]arene was used as a charged ionophore. The research included selection of the ion-selective membrane composition, determination of the ISEs metrological parameters and SCN-ISE application for thiocyanate determination in human saliva. Preparation of the ISEs included selection of a plasticizer for the ion-selective membrane composition and type of the electrode material. The study was carried out using ISE with liquid internal electrolyte (LE-ISE) and solid-contact electrodes made of glassy carbon (GC-ISE) and gold rods (Au-ISE). The best parameters were found for GC sensors for which the ion-selective membrane contained chloroparaffin as a plasticizer (S = 59.9 mV/dec, LOD = 1.6 ´ 10-6 M). The study of potentiometric selectivity coefficients has shown that the thiocyanate-selective sensor could be applied in biomedical research for determination of SCN- concentration in human saliva. The accuracy of the SCN- determination was verified by testing 59 samples of volunteers' saliva by potentiometric sensors and UV-Vis spectrophotometry as a reference technique. Moreover, SCN- concentrations in the smokers' and non-smokers' saliva were compared. In order to investigate the influence of various factors (sex, health status, taken medications) on the thiocyanate level in the saliva, more extensive studies on a group of 100 volunteers were carried out. Additionally, for a group of 18 volunteers, individual profiles of SCN- concentration in saliva measured on a daily basis for over a month were collected.
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Affiliation(s)
- Marcin Urbanowicz
- Nalecz Institute of Biocybernetics and Biomedical Engineering Polish Academy of Sciences, Ks. Trojdena 4, 02-109 Warsaw, Poland; (K.S.); (D.G.P.)
| | - Kamila Sadowska
- Nalecz Institute of Biocybernetics and Biomedical Engineering Polish Academy of Sciences, Ks. Trojdena 4, 02-109 Warsaw, Poland; (K.S.); (D.G.P.)
| | - Dorota G. Pijanowska
- Nalecz Institute of Biocybernetics and Biomedical Engineering Polish Academy of Sciences, Ks. Trojdena 4, 02-109 Warsaw, Poland; (K.S.); (D.G.P.)
| | - Radosław Pomećko
- Department of Chemistry and Technology of Functional Materials, Chemical Faculty, Gdańsk University of Technology, Narutowicza 11/12, 80-233 Gdańsk, Poland; (R.P.); (M.B.)
| | - Maria Bocheńska
- Department of Chemistry and Technology of Functional Materials, Chemical Faculty, Gdańsk University of Technology, Narutowicza 11/12, 80-233 Gdańsk, Poland; (R.P.); (M.B.)
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Suman S, Singh R. Iodide-Selective PVC Membrane Electrode Based on Copper Complex of 2-Acetylthiophene Semicarbazone as Carrier. ANALYTICAL CHEMISTRY LETTERS 2020; 10:357-365. [DOI: 10.1080/22297928.2020.1788989] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/02/2020] [Accepted: 06/23/2020] [Indexed: 06/15/2023]
Affiliation(s)
- Shankar Suman
- Department of Applied Chemistry, Delhi Technological University, Delhi-10042, India
| | - Ram Singh
- Department of Applied Chemistry, Delhi Technological University, Delhi-10042, India
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5
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Matveychuk YV. A Thiocyanate-Selective Electrode and Its Analytical Applications. JOURNAL OF ANALYTICAL CHEMISTRY 2020. [DOI: 10.1134/s1061934820050123] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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6
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Pari M, Reddy KRV. A Facile Cobalt (II) Tetra Amino Phthalocyanine Ingrained Poloy Aniline (PANI) Nano-fiber Film Layer Based Electrode Material for Amperometric Determination of Thiocyanate. J Inorg Organomet Polym Mater 2020. [DOI: 10.1007/s10904-020-01515-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
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Nemilova MY, Shvedene NV, Mikhalev OV, Fedyanin IV, Shpakovsky DB. New metal complex systems as electrode active components of ion selective electrode membranes. RUSS J COORD CHEM+ 2017. [DOI: 10.1134/s1070328417110057] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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9
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Potentiometric Anion Selectivity and Analytical Applications of Polymer Membrane Electrodes Based on Novel Mn(III)- and Mn(IV)-Salophen Complexes. ELECTROANAL 2016. [DOI: 10.1002/elan.201600335] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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10
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Chandra S, Hooda S, Tomar PK, Malik A, Kumar A, Malik S, Gautam S. Synthesis and characterization of bis nitrato[4-hydroxyacetophenonesemicarbazone) nickel(II) complex as ionophore for thiocyanate-selective electrode. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2016; 62:18-27. [PMID: 26952393 DOI: 10.1016/j.msec.2015.12.065] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/07/2015] [Revised: 10/11/2015] [Accepted: 12/28/2015] [Indexed: 11/26/2022]
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11
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Graphene oxide with covalently attached zinc monoamino-phthalocyanine coated graphite electrode as a potentiometric platform for citrate sensing in pharmaceutical preparations. J Solid State Electrochem 2015. [DOI: 10.1007/s10008-015-2832-9] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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12
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Linares-Flores C, Espinoza-Vergara J, Zagal J, Arratia-Perez R. Reactivity trends of Fe phthalocyanines confined on graphite electrodes in terms of donor–acceptor intermolecular hardness: Linear versus volcano correlations. Chem Phys Lett 2014. [DOI: 10.1016/j.cplett.2014.09.033] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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13
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Farhadi K, Bonab HS, Maleki R, Shamsipur M, Shargi H. Tetrachlorophenylporphyrinato Manganese(III) Acetate as a New Ionophore for a Coated Triiodide Ion-Selective Electrode. J CHIN CHEM SOC-TAIP 2013. [DOI: 10.1002/jccs.200200122] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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14
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Erbahar DD, Harbeck M, Gürol I, Gümüş G, Musluoǧlu E, Öztürk ZZ, Ahsen V. Zinc phthalocyanines with fluorinated substituents for direct sensing of carbamate and organophosphate pesticides in water. J PORPHYR PHTHALOCYA 2013. [DOI: 10.1142/s108842461350065x] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
Water pollution by pesticides as the result of intensive agriculture and horticulture has brought many negative consequences to humans and ecosystems. Among others, chemical sensor systems are under intense development for direct pesticide analysis in aqueous samples as a cost effective and simple alternative analytical method. In this work, a set of zinc phthalocyanines is studied in its liquid sensing properties using quartz crystal microbalances. Four different species selected from the two most common organophosphorus and carbamate classes of pesticides are used as test analytes. The phthalocyanines are chemically modified with different fluorinated substituents to increase sensor sensitivity and govern pesticide selectivity in order to create sensors with widely diverging analyte responses. By this means, sensors with a general high sensitivity and selectivity for the two pesticide classes were obtained and detection limits down to 0.03 mg.L-1 could be achieved. The response data of the sensors are analyzed in detail using exploratory multivariate data evaluation methods. The results show that phthalocyanine based sensors are a truly capable platform for chemical analysis systems of aqueous samples.
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Affiliation(s)
- Dilek D. Erbahar
- TUBITAK Marmara Research Center, Materials Institute, PO Box 21, Gebze 41470, Turkey
| | - Mika Harbeck
- TUBITAK Marmara Research Center, Materials Institute, PO Box 21, Gebze 41470, Turkey
| | - Ilke Gürol
- TUBITAK Marmara Research Center, Materials Institute, PO Box 21, Gebze 41470, Turkey
| | - Gülay Gümüş
- TUBITAK Marmara Research Center, Materials Institute, PO Box 21, Gebze 41470, Turkey
| | - Emel Musluoǧlu
- TUBITAK Marmara Research Center, Materials Institute, PO Box 21, Gebze 41470, Turkey
| | - Zafer Z. Öztürk
- TUBITAK Marmara Research Center, Materials Institute, PO Box 21, Gebze 41470, Turkey
- Gebze Institute of Technology, Department of Physics, PO Box 141, Gebze 41400, Turkey
| | - Vefa Ahsen
- TUBITAK Marmara Research Center, Materials Institute, PO Box 21, Gebze 41470, Turkey
- Gebze Institute of Technology, Department of Chemistry, PO Box 141, Gebze 41400, Turkey
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Development of ultrasound-assisted emulsification microextraction for determination of thiocynate ion in human urine and saliva samples. J Chromatogr B Analyt Technol Biomed Life Sci 2013; 917-918:5-10. [DOI: 10.1016/j.jchromb.2012.12.030] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2012] [Revised: 12/27/2012] [Accepted: 12/31/2012] [Indexed: 11/23/2022]
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16
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Novel thiocyanate ion-selective electrodes based on a copper(II) complex of p-hydroxyacetophenone thiosemicarbazone as a carrier. MONATSHEFTE FUR CHEMIE 2013. [DOI: 10.1007/s00706-012-0884-4] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
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17
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Wang FC, Chai YQ, Yuan R. Thiocyanate-selective electrode based on N-salicylidene-benzylamineato copper(II) complex. RUSS J ELECTROCHEM+ 2011. [DOI: 10.1134/s1023193508030038] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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18
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Sancy M, Pavez J, Gulppi MA, de Mattos IL, Arratia-Perez R, Linares-Flores C, Paez M, Nyokong T, Zagal JH. Optimizing the Electrocatalytic Activity of Surface Confined Co Macrocyclics for the Electrooxidation of Thiocyanate at pH 4. ELECTROANAL 2011. [DOI: 10.1002/elan.201000599] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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19
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Yablotskii KV, Shekhovtsova TN. Enzymatic determination of anions. JOURNAL OF ANALYTICAL CHEMISTRY 2010. [DOI: 10.1134/s1061934810070026] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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20
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Logue BA, Hinkens DM, Baskin SI, Rockwood GA. The Analysis of Cyanide and its Breakdown Products in Biological Samples. Crit Rev Anal Chem 2010. [DOI: 10.1080/10408340903535315] [Citation(s) in RCA: 46] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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21
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Naik RM, Kumar B, Asthana A. Kinetic spectrophotometric method for trace determination of thiocyanate based on its inhibitory effect. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2010; 75:1152-1158. [PMID: 20083425 DOI: 10.1016/j.saa.2009.12.078] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/13/2009] [Revised: 12/30/2009] [Accepted: 12/31/2009] [Indexed: 05/28/2023]
Abstract
A kinetic spectrophotometric method for the determination of thiocyanate, based on its inhibitory effect on silver(I) catalyzed substitution of cyanide ion, by phenylhydrazine in hexacyanoferrate(II) is described. Thiocyanate ions form strong complexes with silver(I) catalyst which is used as the basis for its determination at trace level. The progress of reaction was monitored, spectrophotometrically, at 488 nm (lambda(max) of [Fe(CN)(5)PhNHNH(2)](3-), complex) under the optimum reaction conditions at: 2.5x10(-3)M [Fe(CN)(6)](4-), 1.0x10(-3)M [PhNHNH(2)], 8.0x10(-7)M [Ag(+)], pH 2.8+/-0.02, ionic strength (mu) 0.02 M (KNO(3)) and temperature 30+/-0.1 degrees C. A linear relationship obtained between absorbance (measured at 488 nm at different times) and inhibitor concentration, under specified conditions, has been used for the determination of [thiocyanate] in the range of 0.8-8.0x10(-8)M with a detection limit of 2x10(-9)M. The standard deviation and percentage error have been calculated and reported with each datum. A most plausible mechanistic scheme has been proposed for the reaction. The values of equilibrium constants for complex formation between catalyst-inhibitor (K(CI)), catalyst-substrate (K(s)) and Michaelis-Menten constant (K(m)) have been computed from the kinetic data. The influence of possible interference by major cations and anions on the determination of thiocyanate and their limits has been investigated.
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Affiliation(s)
- Radhey M Naik
- Department of Chemistry, University of Lucknow, Lucknow, India.
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22
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Bristow C, Michalitsch R, Laibinis P. Electrochemical Sensing of Thiocyanate Using Gold Electrodes Modified with an Underpotentially Deposited Silver Monolayer. ELECTROANAL 2010. [DOI: 10.1002/elan.200900288] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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23
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24
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Chandra S, Rawat A, Sarkar A. Thiocyanate-Selective PVC Membrane Electrode Based on Copper and Nickel Complexes of Para-tolualdehydesemicarbazone as Carrier. ANAL LETT 2008. [DOI: 10.1080/00032710802424198] [Citation(s) in RCA: 5] [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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25
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Dong YY, Li CY, Zhang XB, Yu RQ, Shen GL. A Novel Potentiometric Sensor for Thiocyanate Based on an Amide-Linked Manganese Diporphyrin Xanthene. ELECTROANAL 2008. [DOI: 10.1002/elan.200804239] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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26
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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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Electroanalysis of thiocyanate using a novel glassy carbon electrode modified by aryl radicals and cobalt tetracarboxyphthalocyanine. Electrochim Acta 2007. [DOI: 10.1016/j.electacta.2007.06.064] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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28
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Chamjangali MA, Bagherian G, Salek-Gilani N. Determination of trace amounts of thiocyanate by a new kinetic procedure based on an induction period. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2007; 67:1252-6. [PMID: 17110159 DOI: 10.1016/j.saa.2006.10.015] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/06/2006] [Revised: 10/08/2006] [Accepted: 10/09/2006] [Indexed: 05/12/2023]
Abstract
A new, simple and sensitive kinetic spectrophotometric method with no need for removing of interfering substances is proposed for the determination of thiocyanate ion in biological and water samples. The procedure is based on the inhibiting effect of thiocyanate on the sodium periodate-potassium bromide-meta cresol purple (MCP) system in acidic media. The induction period of the reaction is proportional to the SCN- concentration. The decolorization of meta cresol purple by the reaction products was used to monitor the reaction spectrophotometrically at 525 nm. Under optimum conditions, thiocyanate can be determined in the range of 0.02-0.8 microg ml(-1) with a 3sigma detection limit of 5 ng ml(-1). The relative standard deviations for 10 replicate determinations of 0.060, 0.10 and 0.50 microg ml(-1) thiocyanate are 3.7, 2.4 and 1.0%, respectively. This method has been successfully used to the determination of thiocyanate content in smokers and non-smokers saliva and spiked water sample.
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Affiliation(s)
- M Arab Chamjangali
- College of Chemistry, Shahrood University of Technology, P.O. Box 36155, Shahrood 316, Iran.
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Valentín-Blasini L, Blount BC, Delinsky A. Quantification of iodide and sodium-iodide symporter inhibitors in human urine using ion chromatography tandem mass spectrometry. J Chromatogr A 2007; 1155:40-6. [PMID: 17466997 DOI: 10.1016/j.chroma.2007.04.014] [Citation(s) in RCA: 51] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2006] [Revised: 03/30/2007] [Accepted: 04/05/2007] [Indexed: 12/21/2022]
Abstract
We developed a sensitive and selective method for quantifying nitrate, thiocyanate, perchlorate and iodide in human urine using ion chromatography coupled with electrospray ionization tandem mass spectrometry. Analysis of proficiency testing materials and spiked urine indicates that the method is precise (coefficients of variation <5%) and accurate (relative percent differences <7.9%). Analytical response was linear across the physiologically relevant concentration range for the analytes, and adequately sensitive to quantify the analytes in >99% of urine samples tested. Measurement of these four toxicologically-related analytes in one assay will provide useful information for assessing potential linkage between exposure and health effects.
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Affiliation(s)
- Liza Valentín-Blasini
- Division of Laboratory Sciences, National Center for Environmental Health, CDC, Atlanta, GA 30341, USA.
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30
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Yang P, Wei W, Tao C. Determination of trace thiocyanate with nano-silver coated multi-walled carbon nanotubes modified glassy carbon electrode. Anal Chim Acta 2007; 585:331-6. [PMID: 17386682 DOI: 10.1016/j.aca.2007.01.011] [Citation(s) in RCA: 44] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2006] [Revised: 01/02/2007] [Accepted: 01/11/2007] [Indexed: 10/23/2022]
Abstract
Novel nano-silver coated multi-walled carbon nanotube composites were prepared and used to fabricate a modified electrode. The application of the nano-silver coated multi-walled carbon nanotube composites modified electrode for determination of trace thiocyanate is demonstrated for the first time. The influence of substrate, pH and interference of coexisting substances was investigated for response properties of the electrode. There was a linear relationship at the range 2.5 x 10(-9) to 5 x 10(-8) mol L(-1) and 5 x 10(-8) to 1 x 10(-6) mol L(-1) of thiocyanate with the decrement of anodic DPV peak currents. The limit of detection was 1 x 10(-9) mol L(-1)(S/N=3). The constructed electrode showed excellent reproducibility and stability. Actual urine and saliva samples of smoker and non-smoker were analyzed and satisfactory results were obtained. This method provides a new way to construct any electrode for biological and environmental analysis.
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Affiliation(s)
- Pinghua Yang
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, PR China
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Firooz AR, Amini MK, Tangestaninejad S, Shahrokhian S. VANADYL AND MOLYBDENYL PHTHALOCYANINES AS IONOPHORES FOR SALICYLATE-SELECTIVE MEMBRANES COATED ON GRAPHITE ELECTRODES. ANAL LETT 2007. [DOI: 10.1081/al-100103210] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Affiliation(s)
- Ali. R. Firooz
- a Department of Chemistry , University of Isfahan , Isfahan , 81744 , Iran
| | - Mohammad K. Amini
- b Department of Chemistry , University of Isfahan , Isfahan , 81744 , Iran
| | | | - Said Shahrokhian
- c Sharif University of Technology , Deparment of Chemistry, Tehran , Iran
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32
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Ye G, Chai Y, Ruo Y, Zhou L, Li Y, Zhang L. Salicylate Ion-Selective Electrode Based on New Tetranuclear Copper Complexes of O-Vannlin-methionine as Neutral Carriers. ANAL SCI 2007; 23:171-6. [PMID: 17297228 DOI: 10.2116/analsci.23.171] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
A new salicylate-selective PVC membrane electrode based on a new Schiff base tetranuclear copper complex of O-vannlin-methionine (Cu(II)(4)-TVM) as a neutral carrier is described. This electrode displays a preferential potentiometric response to salicylate and an anti-Hofmeister selectivity sequence in the following order: Sal(-) > ClO(4)(-) > SCN(-) > I(-) > NO(2)(-) > NO(3)(-) > Br(-) > Cl(-) > SO(3)(2-) > SO(4)(2-) > H(2)PO(4)(-). The electrode exhibits near-Nernstian potential linear range of 1.5 x 10(-6)-1.0 x 10(-1) M with a detection limit of 8.0 x 10(-7) M and a slope of -56.3 mV/decade in pH 3.0-8.0 of phosphorate buffer solution at 20 degrees C. Thanks to the tetranuclear copper(II) in the carrier, the electrode has the advantages of simplicity, fast response, fair stability and reproducibility and low detection limit. The response mechanism to the electrodes is discussed by the a.c. impedance technique and the UV spectroscopy technique. The electrode can be applied to analyses of medicine and the results obtained are in fair agreement with the results given by a standard method.
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Affiliation(s)
- Guangrong Ye
- Chongqing Key Laboratory of Analytical Chemistry, College of Chemistry and Chemical Engineering, Southwest University, Chongquing, PR China
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33
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Luo EP, Chai YQ, Yuan R. Unsymmetrical Tetradentate Schiff Bases Copper (II) Complex as Neutral Carrier for Thiocyanate‐Selective Electrode. ANAL LETT 2007. [DOI: 10.1080/00032710600964742] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Chandra S, Růzicka A, Svec P, Lang H. Organotin compounds: An ionophore system for fluoride ion recognition. Anal Chim Acta 2006; 577:91-7. [PMID: 17723658 DOI: 10.1016/j.aca.2006.06.036] [Citation(s) in RCA: 30] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2006] [Revised: 06/06/2006] [Accepted: 06/12/2006] [Indexed: 11/17/2022]
Abstract
Ion-selective properties were established for membrane electrodes prepared by using organotin compounds of type (L(CN)RSnF2)n, (R=n-Bu (I),=Ph (II)) and (L(CN)SnF3)n (III) (L(CN)=C(6)H4(CH2NMe2)-2). Electrodes formulated with the optimized membranes containing the organotin compounds I-III as ionophores and sodium tetraphenylborate (10-30%) exhibited high selectivity for fluoride over other anions. An electrode prepared with ionophore II using dibutyl phthalate as the plasticizer and 15% sodium tetraphenylborate (NaTPB) as anion additive, possesses the best potentiometric response characteristics. It shows a detection limit of 7.9 x 10(-7) M with a slope of 62.7 mV decade(-1) of activity in buffer solutions of pH 5.5. The interference from other anions is suppressed under this optimized measurement conditions. An entirely non-Hofmeister selectivity sequence (F->CH3COO->Cl->I- approximately Br->ClO4->NO2->NO3->SCN-) with remarkable preference towards fluoride is obtained. The influence on the electrode performances by anion additive was studied, and the possible response mechanism was investigated by UV-vis spectra. The electrode has been used for direct determination of fluoride in drinking mineral water with satisfactory results.
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Affiliation(s)
- Sudeshna Chandra
- Technische Universität Chemnitz, Fakultät für Naturwissenschaften, Institut für Chemie, Lehrstuhl Anorganische Chemie, Strasse der Nationen 62, 09111 Chemnitz, Germany
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36
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Determination of Salicylate by Selective Poly(vinylchloride) Membrane Electrode Based on N,N'-1,4-Butylene Bis(3-methyl salicylidene iminato) Copper(II). B KOREAN CHEM SOC 2006. [DOI: 10.5012/bkcs.2006.27.8.1127] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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37
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Sun AL, Cai YQ, Yuan R, Gui GF. Highly Selective Salicylate Membrane Electrode Based onN,N′-(Aminoethyl)ethylenediamide Bis(2-salicylideneimine) Binuclear Copper(II) Complex as Neutral Carrier. CHINESE J CHEM 2006. [DOI: 10.1002/cjoc.200690170] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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38
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Xu WJ, Chai YQ, Yuan R, Liu SL. A novel thiocyanate-selective electrode based on a zinc–phthalocyanine complex. Anal Bioanal Chem 2006; 385:926-30. [PMID: 16791573 DOI: 10.1007/s00216-006-0512-4] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2006] [Revised: 03/03/2006] [Accepted: 04/26/2006] [Indexed: 10/24/2022]
Abstract
A novel thiocyanate (SCN-)-selective PVC membrane electrode based on a zinc-phthalocyanine (ZnPc) complex as neutral carrier is described. The membrane electrode containing ZnPc with 5.1% (w/w) ionophore, 29.2% (w/w) PVC, and 65.7% (w/w) 2-nitrophenyl octyl ether (o-NPOE) as plasticizer displayed an anti-Hofmeister selectivity sequence, SCN- > Sal- > I- > ClO4- > Br- > Cl- > NO3- > NO2- > H2PO4- > SO4(2-)), and exhibited near-Nernstian potential response to thiocyanate ranging from about 1.0 x 10(-1) to 1.0 x 10(-6) mol L(-1) with a detection limit of 7.5 x 10(-7) mol L(-1) and a slope of 58.1+/-0.5 mV per decade in pH 3.0 phosphate buffer solution at 25 degrees C. This preferential response is believed to be associated with the unique coordination between the central metal of the carrier and thiocyanate.
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Affiliation(s)
- Wen-Ju Xu
- Chongqing Key Laboratory of Analytical Chemistry, e College of Chemistry and Chemical Engineering, Southwest University, Chongqing, 400715, People's Republic of China
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Ozoemena KI, Nyokong T. Comparative electrochemistry and electrocatalytic activities of cobalt, iron and manganese phthalocyanine complexes axially co-ordinated to mercaptopyridine self-assembled monolayer at gold electrodes. Electrochim Acta 2006. [DOI: 10.1016/j.electacta.2005.08.007] [Citation(s) in RCA: 80] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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40
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Xu WJ, Chai YQ, Yuan R, Xu L, Liu SL. Highly Selective Iodide Electrode Based on the Copper(II)- N, N′-bis(salicylidene)-1,2-bis( p-aminophenoxy)ethane Tetradentate Complex. ANAL SCI 2006; 22:1345-9. [PMID: 17038774 DOI: 10.2116/analsci.22.1345] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
In this paper, a new PVC-based liquid-membrane anion-selective electrode based on a copper(II) of N,N'-bis(salicylidene)-1,2-bis(p-aminophenoxy)ethane tetradentate complex (Cu(II)BBAP) is described, which displays a preferential potentiometric response to iodide ion at pH 2.0 and an anti-Hofmeister selectivity sequence: I->SCN->ClO4->NO2->H2PO4->NO3->SO4(2-)>Br->Cl-. The electrode exhibits a near-Nernstian potential linear range of 8.2x10(-7)-1.0x10(-1) M with a detection limit of 5.3x10(-7) M and a slope of -58.8 mV per decade. The A.C. impedance technique and the UV/Vis spectroscopy technique were used to analyze the response mechanism. The electrode could be applied to determine iodide in medicine analysis, and the obtained results were fairly satisfactory.
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Affiliation(s)
- Wen-Ju Xu
- Chongqing Key Laboratory of Analytical Chemistry, College of Chemistry and Chemical Engineering, Southwest University, China
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Zamani HA, Malekzadegan F, Ganjali MR. Highly selective and sensitive thiocyanate membrane electrode based on nickel(II)-1,4,8,11,15,18,22,25-octabutoxyphthalocyanine. Anal Chim Acta 2006. [DOI: 10.1016/j.aca.2005.09.026] [Citation(s) in RCA: 47] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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42
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Ardakani MM, Jalayer M, Naeimi H, Heidarnezhad A, Zare HR. Highly selective oxalate-membrane electrode based on 2,2′-[1,4-butandiyle bis(nitrilo propylidine)]bis-1-naphtholato copper(II). Biosens Bioelectron 2006; 21:1156-62. [PMID: 15925504 DOI: 10.1016/j.bios.2005.04.013] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2005] [Revised: 04/26/2005] [Accepted: 04/26/2005] [Indexed: 11/27/2022]
Abstract
A new oxalate-selective electrode based on the complex 2,2'-[1,4-butandiyle bis(nitrilo propylidine)]bis-1-naphtholato copper(II) (CuL) as the membrane carrier was developed. The electrode exhibited a good Nernstian slope of -29.2+/-0.6 mV/decade (mean value+/-standard deviation, n=5) and a linear range of 5.0 x 10(-8) to 1.0 x 10(-1)M for oxalate. The limit of detection was 5.0 x 10(-8)M. This electrode represents a fast response time (i.e. 10-15s) and could be used for more than 3 months. The selectivity coefficients were determined by the fixed interference method (FIM) and could be used in the pH range of 2.0-7.0. It was employed as an indicator electrode for the determination of oxalate in water samples.
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Affiliation(s)
- M Mazloum Ardakani
- Department of Chemistry, Faculty of Science, Yazd University, Yazd, Iran.
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Mazloum Ardakani M, Jamshidpour M, Naeimi H, Moradi L. Thiocyanate Ion-selective PVC Membrane Electrode Based on N,N'-Ethylene-bis(4-methylsalicylidineiminato)nickel(II). ANAL SCI 2006; 22:1221-6. [PMID: 16966813 DOI: 10.2116/analsci.22.1221] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
A highly selective poly(vinyl chloride) (PVC) membrane electrode based on an N,N'-ethylene-bis(4-methyl-salicylidineiminato) nickel(II) [Ni(EBMSI)] complex as a carrier for a thiocyanate-selective electrode is reported. The influences of the membrane composition, pH and possible interfering anions were investigated based on the response properties of the electrode. The electrode exhibited a good Nernstian slope of -58.9 +/- 0.7 mV decade(-1), over a wide pH range of 3.5 - 8.5 and a linear range of 1.0 x 10(-6) - 1.0 x 10(-1) M for thiocyanate. The detection limit of electrode was 3.1 x 10(-7) M SCN(-). The selectivity coefficients determined by a fixed interference method (FIM) indicate that a good discriminating ability towards the SCN- ion compared to other anions. The proposed sensor had a fast response time of about 5 - 15 s and could be used for at least 3 months without any considerable divergence in the potential. It was applied as an indicator electrode in the titration of thiocyanate with Ag+ and in the potentiometric determination of thiocyanate in saliva and urine samples.
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Dai J, Yuan R, Chai Y, An L, Zhong X, Liu Y, Tang D. Highly Thiocyanate-Selective PVC Membrane Electrode Based on Lipophilic Ferrocene Derivative. ELECTROANAL 2005. [DOI: 10.1002/elan.200503313] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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45
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Fu-Chang W, Ya-Qin C, Ruo Y, Chun-Hua C, Jian-Yuan D, Lan X. A Selective Membrane Electrode for Thiocyanate Ion Based on a Bis-taurine-salicylic Binuclear Copper(II) Complex as Ionophore. CHINESE J CHEM 2005. [DOI: 10.1002/cjoc.200590865] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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46
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Ardakani MM, Jalayer MS, Safari J, Sadeghi Z, Zare HR. Salicylate poly(vinyl chloride) membrane electrode based on (2-[(E)-2-(4-nitrophenyl) hydrazono]-1-phenyl-2-(2-quinolyl)-1-ethanone) Cu(II). Anal Biochem 2005; 341:259-66. [PMID: 15907871 DOI: 10.1016/j.ab.2005.03.040] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2004] [Indexed: 10/25/2022]
Abstract
A new salicylate-selective electrode based on the complex of (2-[(E)-2-(4-nitrophenyl)hydrazono]-1-phenyl-2-(2-quinolyl)-1-ethanone) Cu(II) as the membrane carrier was developed. The electrode exhibited a good Nernstian slope of -59.6+/-1.0 mV/decade and a linear range of 1.0 x 10(-6) to 1.0M for salicylate. The limit of detection was 5.0 x 10(-7) M. The electrode had a fast response time of 10 s and can be used for more than 3 months. The selective coefficients were determined by the fixed interference method and could be used in the pH range of 4.0 to 10.5. The electrode was employed as an indicator electrode for direct determination of salicylate in pharmaceutical and biological samples.
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Affiliation(s)
- M Mazloum Ardakani
- Department of Chemistry, Faculty of Science, Yazd University, Yazd, Iran.
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47
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Xu L, Yuan R, Chai YQ, Fu YZ. Novel Membrane Potentiometric Thiocyanate Sensor Based on Tribenzyltin(IV) Dithiocarbamate. ELECTROANAL 2005. [DOI: 10.1002/elan.200403209] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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48
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Shahrokhian S, Jannatrezvani MJ, Khajehsharifi H. Rhodium(II) Phthalocyanine as a Selective Carrier in Thiocyanate‐Selective Membrane Electrode. ANAL LETT 2005. [DOI: 10.1081/al-200060865] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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49
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Ozoemena KI, Nyokong T. Surface electrochemistry of iron phthalocyanine axially ligated to 4-mercaptopyridine self-assembled monolayers at gold electrode: Applications to electrocatalytic oxidation and detection of thiocyanate. J Electroanal Chem (Lausanne) 2005. [DOI: 10.1016/j.jelechem.2005.02.018] [Citation(s) in RCA: 60] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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50
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Dai J, Chai Y, Yuan R, An L, Liu Y, Zhong X, Tang D. Tricoordinate Schiff Base Copper(II) Complex as Neutral Carrier for Highly Selective Thiocyanate Electrode. ANAL LETT 2005. [DOI: 10.1081/al-200047759] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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