A novel copper selective sensor based on ion imprinted 2-vinylpyridine polymer

2018 ◽  
Vol 96 (12) ◽  
pp. 1027-1036
Author(s):  
Murat Yolcu ◽  
Nurşen Dere
Keyword(s):  
Environmental Water ◽  
Pvc Membrane ◽  
Indicator Electrode ◽  
Potentiometric Response ◽  
Ion Imprinted ◽  
Aas Method ◽  
Ph Range ◽  
Determination Of Copper ◽  
Selective Sensor

A novel potentiometric Cu2+-selective microsensor has been developed that is based upon ion imprinted 2-vinylpyridine polymer. The polymer was synthesized using Cu(II) ions, 2-vinylpyridine, methacrylic acid, and ethylene glycol dimethacrylate as a template, functional monomer, and cross-linker, respectively. The resultant polymer was used as ionophore to obtain a selective potentiometric response towards Cu(II) ions in the structure of the PVC membrane. The detection limit of the microsensor was determined to be 8.4 × 10−7 mol/L, and its response time was considerably short (less than 15 s). The prepared microsensor exhibited a near-Nernstian response for Cu(II) ions over the concentration range of 10−1 to 10−6 mol/L, with a slope of 28.5 mV per decade over 2 months, and without any considerable divergence in potentials. The microsensor was effectively performed in a pH range between 4.0 and 7.0 and used as an indicator electrode in the potentiometric titration of Cu(II) ions with EDTA. The proposed microsensor has been successfully demonstrated for the determination of copper in a number of environmental water samples. The obtained potentiometric results were in good harmony with the results obtained by the AAS method.

scholarly journals Construction of Tb3+ PVC-MembraneElectrode Based on N,N’-Bis(pyrrolylmethylene)-2-aminobenzylamine

2011 ◽  
Vol 8 (s1) ◽  
pp. S203-S210 ◽  
Author(s):  
Hassan Ali Zamani ◽  
Zynab Rafati ◽  
Soraia Meghdadi
Keyword(s):  
Heavy Metal Ions ◽  
Alkaline Earth ◽  
Pvc Membrane ◽  
Indicator Electrode ◽  
Fluoride Ion ◽  
Solution Ph ◽  
Potentiometric Response ◽  
Nernstian Slope ◽  
Mouth Wash

In this work, we report as new Tb3+-PVC membrane sensor based onN,N’-bis(pyrrolylmethylene)- 2-aminobenzylamine (PMA) as a suitable ion carrier. Poly vinylchloride (PVC)-based membrane composed of PMA with oleic acid (OA) as anionic additives and acetophenone (AP) as plasticizing solvent mediators. The Tb3+sensor exhibits a Nernstian slope of 19.7±0.4 mV per decade over the concentration range of 1.0×10-5to 1.0×10-2M and a detection limit of 4.6×10-6M of Tb3+ions. The potentiometric response of the sensor is independent of the solution pH in the range of 2.9–8.1. It has a very short response time, in the whole concentration range (∼5 s). The recommended sensor revealed comparatively good selectivity with respect to most alkali, alkaline earth, some transition and heavy metal ions. It was successfully employed as an indicator electrode in the potentiometric titration of Tb(III) ions with EDTA. The electrode was also employed for the determination of the fluoride ion in two mouth wash preparations and the determination of Tb3+ions concentration in mixtures of three different ions.

scholarly journals Neodymium(III) PVC Membrane Electrodchemical Sensor Based on N-benzoylethylidene-2-aminobenzylamine

2012 ◽  
Vol 9 (4) ◽  
pp. 1941-1950 ◽  
Author(s):  
Hassan Ali Zamani ◽  
Mojdeh Zaferoni ◽  
Soraia Meghdadi
Keyword(s):  
Alkaline Earth ◽  
High Selectivity ◽  
Pvc Membrane ◽  
Indicator Electrode ◽  
Solution Ph ◽  
Response Characteristics ◽  
Potentiometric Response ◽  
Nernstian Slope ◽  
Mouth Wash

The N-benzoylethylidene-2-aminobenzylamine (BEA) was used as a suitable ionophore in construction of neodymium ion selective electrode. The electrode with composition of 30% PVC, 58% solvent mediator (NB), 2% ionophore (BEA) and 10% anionic additive (OA) shows the best potentiometric response characteristics. The Nd3+sensor exhibits a Nernstian slope of 21.2 ± 0.2 mV decade-1over the concentration range of 1.0 × 10-6to 1.0 × 10-2mol L-1, and a detection limit of 6.3 × 10-7mol L-1of Nd3+ions. The potentiometric response of the sensor is independent of the solution pH in the range of 2.4–8.5. It has a very short response time, in the whole concentration range (~7 s), and can be used for at least eight weeks. The proposed sensor revealed high selectivity with respect to all common alkali, alkaline earth, transition and heavy metal ions, including members of the lanthanide family other than Nd3+. The Nd3+sensor was successfully applied as an indicator electrode in the potentiometric titration of Nd3+ions with EDTA. The electrode was also employed for the determination of the fluoride ion in two mouth wash preparations.

scholarly journals Determination of Nd3+Ions in Solution Samples by a Coated Wire Ion-Selective Sensor

2012 ◽  
Vol 9 (1) ◽  
pp. 83-88 ◽  
Author(s):  
Hassan Ali Zamani
Keyword(s):  
High Selectivity ◽  
Water Solution ◽  
Fast Response ◽  
Indicator Electrode ◽  
Coated Wire ◽  
Nernstian Slope ◽  
Ph Range ◽  
Coated Wire Electrode ◽  
Selective Sensor

A new coated wire electrode (CWE) using 5-(methylsulfanyl)-3-phenyl-1H-1,2,4-triazole (MPT) as an ionophore has been developed as a neodymium ion-selective sensor. The sensor exhibits Nernstian response for the Nd3+ions in the concentration range of 1.0×10−6-1.0×10−2M with detection limit of 3.7×10−7M. It displays a Nernstian slope of 20.2±0.2 mV/decade in the pH range of 2.7–8.1. The proposed sensor also exhibits a fast response time of ∼5 s. The sensor revealed high selectivity with respect to all common alkali, alkaline earth, transition and heavy metal ions, including members of the lanthanide family other than Nd3+. The electrode was used as an indicator electrode in the potentiometric titration of Nd(III) ions with EDTA. The electrode was also employed for the determination of the Nd3+ions concentration in water solution samples.

scholarly journals Thiocyanate Ion-Selective PVC Membrane Electrode

2010 ◽  
Vol 5 (1) ◽  
pp. 73-77
Author(s):  
Mihail Revenco ◽  
Mariana Martin ◽  
Waell Abu Dayyih
Keyword(s):  
Pvc Membrane ◽  
Indicator Electrode ◽  
Membrane Electrode ◽  
Thiocyanate Ion ◽  
Pvc Membrane Electrode ◽  
Wide Ph Range ◽  
Nernstian Slope ◽  
Ph Range ◽  
Discriminating Ability ◽  
Selective Sensor

A potentiometric selective sensor based on trinuclear chromium(III) complex as a novel ionophore for the thiocyanateselective electrode is reported. The sensor displays a near Nernstian slope of 57 ± 2 mV per decade, over a wide pH range 3 - 11. The working concentration range of the electrode is 1.10-5 – 1.10-1 mol/l with a detection limit of 5.10-6 mol/l. The sensor has a response time of 20 s and can be used for at least 6 months without any considerable fluctuation of the potential. The selectivity coefficients determined at using the fixed interference method indicate a good discriminating ability towards other anions. The prepared sensor was applied as an indicator electrode in the titration of thiocyanate with Ag+.

scholarly journals PVC-Membrane Potentiometric Electrochemical Sensor Based on 2-(4-Oxopentan-2-ylideneamino)isoindoline-1,3-dione for Selective Determination of Holmium(III)

2011 ◽  
Vol 8 (s1) ◽  
pp. S97-S104 ◽  
Author(s):  
Hassan Ali Zamani
Keyword(s):  
Heavy Metal Ions ◽  
Alkaline Earth ◽  
Fast Response ◽  
Pvc Membrane ◽  
Indicator Electrode ◽  
Selective Determination ◽  
Nernstian Slope ◽  
Neutral Ionophore ◽  
Ph Range

2-(4-Oxopentan-2-ylideneamino) isoindoline-1,3-dione (OID) was found to be a suitable neutral ionophore in the fabrication of a highly selective Ho3+membrane sensor. The electrode has a near-Nernstian slope of 19.6±0.5 mV per decade with a wide concentration range between 1.0×10-6and 1.0×10-2mol/L in the pH range of 3.5–8.8, having a fast response time (∼5 s) and a detection limit of 5.8×10-7mol/L. This electrode presented very good selectivity and sensitivity towards the Ho3+ions over a wide variety of cations, including alkali, alkaline earth, transition and heavy metal ions. The practical utility of the electrode has been demonstrated by its use as an indicator electrode for the potentiometric titration of a Ho3+solution with EDTA and for the determination of Ho3+ions concentration in mixtures of two and three different ions.

scholarly journals Application ofN-Quinoline-2-carboxamido-8-aminoquinoline in Fabrication of a Ho(III)-PVC Membrane Sensor

2011 ◽  
Vol 8 (s1) ◽  
pp. S237-S244 ◽  
Author(s):  
Hassan Ali Zamani ◽  
Samaneh Langroodi ◽  
Soraia Meghdadi
Keyword(s):  
Heavy Metal ◽  
Dynamic Range ◽  
Fast Response ◽  
Pvc Membrane ◽  
Indicator Electrode ◽  
Membrane Composition ◽  
Membrane Sensor ◽  
Potentiometric Response ◽  
Mouth Wash

TheN-quinoline-2-carboxamido-8-aminoquinoline (QCA) was used as a suitable ion carrier in the construction of a Ho(III) PVC-based membrane sensor. This sensor demonstrated good selectivity and sensitivity towards the holmium ion for a broad variety of cations, including alkali, alkaline earth, transition and heavy metal ions. The proposed electrode exhibits a linear dynamic range between 1.0×10-6and 1.0×10-2M, with a near Nernstian slope of 20.4±0.3 mV per decade and a detection limit of 4.2×10-7M. The best performance was obtained with a membrane composition of 30% poly(vinyl chloride), 56% nitrobenzene, 2% sodium tetraphenyl borate, 10% oleic acid and 2% QCA. The potentiometric response of the constructed electrode is pH independent in the range of 2.4-7.4. The sensor possesses the advantages of short conditioning time, fast response time (∼ 5 s) and especially, good selectivity towards transition and heavy metal and some mono, di and trivalent cations. The Ho3+sensor was successfully applied as an indicator electrode in the potentiometric titration of Ho(III) ions with EDTA. The electrode was also used for the determination of Ho3+ions in mixtures of different ions and the determination of the fluoride ion in mouth wash solutions.

Dysprosium(III) Ion-Selective Electrochemical Sensor Based on 6-Hydrazino-1,5-diphenyl-6,7-dihydropyrazolo[3,4-d]pyrimidine-4(5H)-imine

2007 ◽  
Vol 72 (9) ◽  
pp. 1189-1206 ◽  
Author(s):  
Hassan Ali Zamani ◽  
Mohammad Reza Ganjali ◽  
Nasim Seifi
Keyword(s):  
Heavy Metal Ions ◽  
Alkaline Earth ◽  
Fast Response ◽  
Sensor Response ◽  
Indicator Electrode ◽  
Selective Electrode ◽  
Membrane Sensor ◽  
Sensing Material ◽  
Ph Range

A Dy(III) ion-selective electrode based on 6-hydrazino-1,5-diphenyl-6,7-dihydropyrazolo[3,4-d]pyrimidine-4(5H)-imine (HDDPI) as an excellent sensing material was developed. The sensor exhibits a Nernstian behavior (a slope of 19.6 ± 0.3 mV per decade) over a wide concentration range (from 1.0 × 10-1 to 8.0 × 10-7 M Dy) with a detection limit of 4.2 × 10-7 M. The sensor response is independent of pH of the solution in the pH range 3.5-8.3. The sensor possesses the advantages of short conditioning time, fast response time (<10 s) and in particular, good selectivity and sensitivity to the dysprosium ion in the presence of a variety of cations, including alkali, alkaline earth, transition and heavy metal ions. The sensor also showed a great enhancement in selectivity coefficients for dysprosium ions, in comparison with the formerly mentioned dysprosium sensors. The electrode can be used for at least 10 weeks without any considerable divergence in the potentials. The proposed electrode was successfully used as an indicator electrode in potentiometric titration of Dy(III) ions with EDTA. The membrane sensor was also used in the determination of concentration of F- ions in some mouth washing solutions and in the Dy3+ recovery from solution.

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