Anion recognition: fabrication of a highly selective and sensitive HPO4(2-) PVC sensor based on a oxo-molybdenum methyl-salen

Ganjali, Mohammad Reza; Norouzi, Parviz; Hatambeygi, Nader; Salavati‐Niasari, Masoud

doi:10.1590/s0103-50532006000500007

Cited by 23 publications

(9 citation statements)

References 24 publications

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“…The variation of the flat band voltage (▵V FB ) was plotted versus pH and showed almost stable potential between pH 7 and pH 8 (Figure B). The variation of the potential at pH ≤ 7 could be related to the protonation of the ionophore in the membrane which resulted in a loss of its ability to interact with

{normalH normalP normalO}_{4}^{2 -}

ions ,. At higher pH (>8.0), the potential increasing may be attributed to the formation of hydroxyl‐complexes of Cu 2+ in solution.…”

Section: Resultsmentioning

confidence: 99%

“…The specificity is one of the most important characteristics of a chemical sensor. The capacitance chemical sensor Al−Cu/Si‐p/SiO 2 /Si 3 N 4 /Cu(II)Pc‐PAA has demonstrated a higher preference for

{normalH normalP normalO}_{4}^{2 -}

ions when compared to other examined ions such as chloride Cl − , sulfate

{normalS normalO}_{4}^{2 -}

, carbonate

{normalC normalO}_{3}^{2 -}

and perchlorate

{normalC normalI normalO}_{4}^{2 -}

. The flat‐band voltage shift ΔV FB of these interferences was plotted and compared to the responses of

{normalH normalP normalO}_{4}^{2 -}

(Figure ).…”

Section: Resultsmentioning

confidence: 99%

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Silicon Nitride Capacitive Chemical Sensor for Phosphate Ion Detection Based on Copper Phthalocyanine – Acrylate‐polymer

et al. 2017

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International audienceIn this work, we report the development of a highly sensitive capacitance chemical sensor based on a copper C, C, C, C-tetra-carboxylic phthalocyanine-acrylate polymer adduct (Cu(II) TCPc-PAA) for phosphate ions detection. A capacitance silicon nitride substrate based Al-Cu/Si-p/SiO2/Si3N4 structure was used as transducer. These materials have provided good stability of electrochemical measurements. The functionalized silicon-based transducers with a Cu(II) Pc-PAA membrane were characterized by using Mott-Schottky technique measurements at different frequency ranges and for different phosphate concentrations. The morphological surface of the Cu(II) Pc-PAA modified silicon-nitride based transducer was characterized by contact angle measurements and atomic force microscopy. The pH effect was also investigated by the Mott-Schottcky technique for different Tris-HCl buffer solutions. The sensitivity of silicon nitride was studied at different pH of Tris-HCl buffer solutions. This pH test has provided a sensitivity value of 51 mV/decade. The developed chemical sensor showed a good performance for phosphate ions detection within the range of 10(-10) to 10(-5) M with a Nernstian sensitivity of 27.7 mV/decade. The limit of detection of phosphate ions was determined at 1 nM. This chemical sensor was highly specific for phosphate ions when compared to other interfering ions as chloride, sulfate, carbonate and perchlorate. The present capacitive chemical sensor is thus very promising for sensitive and rapid detection of phosphate in environmental applications

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{normalH normalP normalO}_{4}^{2 -}

ions ,. At higher pH (>8.0), the potential increasing may be attributed to the formation of hydroxyl‐complexes of Cu 2+ in solution.…”

Section: Resultsmentioning

confidence: 99%

{normalH normalP normalO}_{4}^{2 -}

ions when compared to other examined ions such as chloride Cl − , sulfate

{normalS normalO}_{4}^{2 -}

, carbonate

{normalC normalO}_{3}^{2 -}

and perchlorate

{normalC normalI normalO}_{4}^{2 -}

. The flat‐band voltage shift ΔV FB of these interferences was plotted and compared to the responses of

{normalH normalP normalO}_{4}^{2 -}

(Figure ).…”

Section: Resultsmentioning

confidence: 99%

Silicon Nitride Capacitive Chemical Sensor for Phosphate Ion Detection Based on Copper Phthalocyanine – Acrylate‐polymer

et al. 2017

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“…The lowest detection limit among these sensors belongs to a derivative of (tetraphenylporphyrinato)cobalt(III) acetate based CGE and is about 2.0 × 10 -8 M [195]. The HPO 4 2-sensors that have been reported were based on vanadyl [198,199] and molybdenum [200,201] complexes and showed almost Nernstian potential slopes. There have been quite a lot reports on PMEs [202][203][204][205][206][207][208][209][210][211][212][213][214][215][216][217] and a few CGEs [208,212] for SCN -ion.…”

Section: Anion Selective Electrodesmentioning

confidence: 99%

One decade of research on ion-selective electrodes in Iran (1996–2006)

Ganjali

Norouzi

Faridbod

et al. 2007

JICS

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This review presents a general overview about the development of ion-selective electrodes in Iran during the past decade (1996)(1997)(1998)(1999)(2000)(2001)(2002)(2003)(2004)(2005)(2006). All of the reported ion-selective sensors (for cations, anions and organic species) are cited in this review. Sensors for 39 cations, 12 anions, and 23 organic compounds and drugs have been reported in this reivew. Some of the main group cations (e.g. beryllium) as well as most of the lanthanide ion (i.e., presidium, erbium, lutetium, cerium, neodymium, europium, gadolinium, terbium, dysprosium, holmium, ytterbium, and thulium) sensors have been reported for the first time. It is noticable that the best reported sensors for HPO 4 2-, SO 4 2-, Cl -, ClO 4 -, Br -, and I 3 -have been designed and constructed by the Iranian researchers.

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“…The most utilized groups for the purpose of anion binding by hydrogen bonds are amide, thioamide, and amine functions 10, 11. Phosphate levels having a negative effect on aquatic ecology and water quality in freshwaters have increased in the past 50 years 12. With increasing use of phosphate fertilizers in agricultural industries, monitoring of phosphate ions becomes very important.…”

Section: Introductionmentioning

confidence: 99%

Synthesis of novel silica gel immobilized‐calix[4]arene amide ionophores and their anion binding abilities toward phosphate and chromate anions

Yiğiter

Bayrakcı

Ertul

2011

J of Applied Polymer Sci

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This article describes the synthesis and characterization of four new calix[4]arene ionophores 5-7 and 9 and corresponding two new silica gel-immobilized calix[4]arene ionophores containing pyridine 10 and 11 via modification of calix[4]arene monoamide derivatives 5 and 6 with aminopropyl silica gel, respectively. The extraction studies have been performed using liquid-liquid extraction for receptors 5-7 and 9 and solid-liquid batchwise sorption procedures for receptors 10 and 11. Obtained extraction results showed that the immobilized-calix[4] arene ionophores 10 and 11 have high extraction ability toward chromate and phosphate anions as compared to their corresponding monomeric precursors 5 and 6.

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Anion recognition: fabrication of a highly selective and sensitive HPO4(2-) PVC sensor based on a oxo-molybdenum methyl-salen

Cited by 23 publications

References 24 publications

Silicon Nitride Capacitive Chemical Sensor for Phosphate Ion Detection Based on Copper Phthalocyanine – Acrylate‐polymer

Silicon Nitride Capacitive Chemical Sensor for Phosphate Ion Detection Based on Copper Phthalocyanine – Acrylate‐polymer

One decade of research on ion-selective electrodes in Iran (1996–2006)

Synthesis of novel silica gel immobilized‐calix[4]arene amide ionophores and their anion binding abilities toward phosphate and chromate anions

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