Development of an optical chemical sensor based on 2-(5-bromo-2-pyridylazo)-5-(diethylamino)phenol in Nafion for determination of nickel ion

Amini, Mohammad K.; Isfahani, Tahereh Momeni; Khorasani, Jafar H.; Pourhossein, Mohammad

doi:10.1016/j.talanta.2003.12.032

Cited by 45 publications

(7 citation statements)

References 36 publications

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“…It was used for the spectrophotometric determination of nickel in aqueous solution in a flowthrough cell [49]. Optical sensors may involve a color forming reagent, which is immobilized in a transparent ionomer film.…”

Section: Sensors and Actuatorsmentioning

confidence: 99%

Applications

Grot¹

2011

Fluorinated Ionomers

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Section: Sensors and Actuatorsmentioning

confidence: 99%

Applications

Grot¹

2011

Fluorinated Ionomers

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“…Amini et al . reported optical nickel sensor from azo compound using Nafion membrane (Figure c). Goswami et al .…”

Section: Resultsmentioning

confidence: 99%

Bis‐Pyridyl Diimines as Selective and Ratiometric Chemosensor for Ni(II) and Cd(II) Metal Ions

Das

Sarkar

2019

ChemistrySelect

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A pyridyl based Schiff base compound, (1E,1′E)‐N,N′‐(butane‐1,4‐diyl)bis(1‐(pyridin‐2‐yl)methanimine) (2pdab) was observed to serve as a highly selective and sensitive ratiometric chemosensor for Ni2+ and Cd2+ ions. Mole ratio method and Yoe Jone's method showed a 1:1 binding mode of metal ions (Ni2+ and Cd2+) with 2pdab, while a binding constant of 26.88 ×106 L/mol and 4.29×106 L/mol, for Ni2+ and Cd2+, respectively, was determined. The limit of detection of 2pdab in sensing Ni2+ and Cd2+ was observed to be 3.08 μM and 1.4688 μM, respectively. The selectivity of 2pdab to detect Cd2+ and Ni2+ among various other competitive ions was also studied. The sensor, 2pdab, was applied in real time application for detection of nickel ion in river water sample.

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“…In the Table 4, response characteristics of the proposed method are compared with two reported methods. In comparison with two methods [41,42], our proposed method is more selective.…”

Section: Analytical Applicationmentioning

confidence: 91%

Nickel(II) Selective PVC‐Based Membrane Sensor Using a Schiff Base

Rezaei

Hadadzadeh

Azimi

2011

International Journal of Spectroscopy

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A polyvinylchloride (PVC) membrane optode was prepared by using 1,2-di(o-salicylaldiminophenylthio)ethane (H 2 DSALPTE) as a chelating reagent for selective determination of Ni(II) ions. The optimized membranes incorporating H 2 DSALPTE as an ionophore, sodium tetraphenylborate (NaTPB) as an anion excluder, and tributyl phosphate (TBP) as a solvent mediator were prepared and applied for determination of Ni(II) ions. The membrane responded to Ni(II) ion by changing the color from yellow to green in an acetate buffer solution at pH 6.0. The best performance was observed when the membrane having a composition of 3.17% ligand, 31.64% PVC, 63.29% TBP, and 1.90% NaTPB. The membrane can be worked well over a wide concentration range from 1.0×10−5 to 5.0×10 −3 M. The membrane exhibited a detection limit of 8.51×10 −6 M, and the response time of the membrane was within 7-12 min depending on the concentration of Ni(II) ions. The selectivity of the probe towards nickel determination was found to be very good. Experimental results showed that the probe could be used as an effective tool in analyzing the Ni(II) content of water samples.

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Development of an optical chemical sensor based on 2-(5-bromo-2-pyridylazo)-5-(diethylamino)phenol in Nafion for determination of nickel ion

Cited by 45 publications

References 36 publications

Applications

Applications

Bis‐Pyridyl Diimines as Selective and Ratiometric Chemosensor for Ni(II) and Cd(II) Metal Ions

Nickel(II) Selective PVC‐Based Membrane Sensor Using a Schiff Base

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