A mercury ion selective electrode based on poly-o-toluidine Zr(IV) tungstate composite membrane

Naushad, Mu.; Inamuddin, .; Rangreez, Tauseef Ahmad; ALOthman, Zeid A.

doi:10.1016/j.jelechem.2013.12.002

Cited by 18 publications

(6 citation statements)

References 30 publications

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“…It would have been interesting to see complex formation constants directly in the membrane phase. Inamuddin and co-workers also put forward ion-selective electrodes for Hg(II), using the polymeric cation-exchanger poly- o -toluidine Zr(IV) tungstate . While the technical quality of the paper is not very high and the detection limits were likely biased with the 0.1 M Hg(II) solution used as inner electrolyte, the lifetime and selectivity of the membrane appear to be promising.…”

Section: Ionophoresmentioning

confidence: 99%

“…Inamuddin and co-workers also put forward ion-selective electrodes for Hg(II), using the polymeric cation-exchanger poly-o-toluidine Zr(IV) tungstate. 196 While the technical quality of the paper is not very high and the detection limits were likely biased with the 0.1 M Hg(II) solution used as inner electrolyte, the lifetime and selectivity of the membrane appear to be promising. On the other hand, Qin and co-workers showed that membranes containing the commercially available Lead ionophore IV are responsive to the HgCl 3 − species, allowing its detection in chloride rich media.…”

Section: ■ Ionophoresmentioning

confidence: 99%

See 1 more Smart Citation

Electroanalysis with Membrane Electrodes and Liquid–Liquid Interfaces

Bakker

2015

Anal. Chem.

100

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This Review describes, with 200 references, progress with ion-selective electrodes, membrane electrodes, and ion transfer voltammetry in the period between January 2013 and September 2015. The selection of papers was done at the author’s discretion and should therefore be understood as an opinion piece and a current snapshot of the activity in the field. Contributions were sourced from modern search engines, primarily SciFinder, searching for relevant keywords and known author names. Some journal tables of contents were also screened manually. Please accept my apology if a reader feels that his or her important contribution has been left out. Perhaps I simply did not see it

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Section: Ionophoresmentioning

confidence: 99%

Section: ■ Ionophoresmentioning

confidence: 99%

Electroanalysis with Membrane Electrodes and Liquid–Liquid Interfaces

Bakker

2015

Anal. Chem.

100

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“…Reasons for the observed mercury ion selectivity of a composite of POT and Zr(IV)tungstate, in particular of o-toluidine, have not been reported [202]; the same reasoning applies to a mercury ion-sensitive composite of poly(otoluidine)@Sn(II)silicate/CNT 2 [203]. A nanocomposite of POT and Zr(IV)phosphate has been studied and suggested for a pesticide-(2,4,5-trichlorophenoxy acetic acid)-sensitive membrane electrode; reasons for the selection just of POT were not even considered [204].…”

Section: Miscellaneous Observations and Applicationsmentioning

confidence: 97%

o-Toluidine in electrochemistry – an overview

Weber

Richter

Holze

2022

J Solid State Electrochem

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The substituted aromatic amine o-toluidine (2-methylaniline, 1-amino-2-methylbenzene) is frequently encountered in electrochemical research as a soluble corrosion inhibitor dissolved in aqueous media used e.g., in cooling systems, as a homomonomer for formation of intrinsically conducting poly-o-toluidine and as a comonomer in formation of respective copolymers and their composites. The obtained polymers are suggested as corrosion protection coatings, as active materials in devices for electrochemical energy storage, but more frequently, they are examined as active components in electrochemical sensors.The significant and pronounced carcinogenicity of o-toluidine has hardly been addressed; presumably, most researchers are not even aware of this property. After a brief summary of the health risks and effects, the following overview presents typical examples of said studies and applications. If possible, substitutes with lower health risks are proposed, at least further studies enabling such replacement are suggested.

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“…In [29], a new cloud point extraction procedure has been optimized for the selective determination of trace amounts of total iron in some environmental samples without using organic reagents. The determination of mercury via sensor in real aqueous along with real samples has been also reported as in [30,31].…”

Section: Adnan Et Al / Cloud Point Extraction With New Azo-derivativementioning

confidence: 99%

Separation and Spectrophotometric Determination of Iron (III) and Mercury (II) via Cloud Point Extraction with New Azo-Derivative

Jawad¹,

Kadhium²,

Azooz³

2018

Eurasian J Anal Chem

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A new coupled cloud point extraction (CPE) was developed as prompt, easy and economical preconcentration technique for spectrophotometric determination of tiny amounts of Fe 3+ and Hg 2+ in real samples. A modern thiazolylazo ligand [methyl phenyl thiazolyl azo]-3-methyl-4-methoxy-2-naphthol (MPTAN) was done for the CPE method in the preconcentration of Fe 3+ and Hg 2+ as an earlier step to its characterization by UV-VIS spectrophotometry. The analytical manner includes the formation of under study metals complex with new ligand and quantitatively extracted to the Cloud point layer (CPL) of TritonX-100 after heating. The concentration of MPTAN, metals, pH, thermodynamic data and volume of surfactant was optimized. The investigation of stoichiometry has the ratio of metal to ligand of 1:1. Under finest settings and conditions, the calibration curve was found to be linear in the concentration range of two ions (0.05-10) ppm and the limit of detection for Fe 3+ and Hg 2+ are (0.016 and 0.041) ppm respectively. The suggested CPE has an excellent methodology for characterization of trace metal ions in surrounding samples with a complex matrix as in soils, water, vegetable, meats, and fruits.

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A mercury ion selective electrode based on poly-o-toluidine Zr(IV) tungstate composite membrane

Cited by 18 publications

References 30 publications

Electroanalysis with Membrane Electrodes and Liquid–Liquid Interfaces

Electroanalysis with Membrane Electrodes and Liquid–Liquid Interfaces

o-Toluidine in electrochemistry – an overview

Separation and Spectrophotometric Determination of Iron (III) and Mercury (II) via Cloud Point Extraction with New Azo-Derivative

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