The Electropolymerization of 2,6‐Diaminopyridine and Its Application as Mercury Ion Selective Electrode

Bakhtiarzadeh, Fariba; Ghani, Sulaiman Ab

doi:10.1002/elan.200900234

Cited by 13 publications

(2 citation statements)

References 34 publications

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“…Aoki et al have pioneered the usage of composite pencil graphite (CPG) lead as a working electrode . Ghani's group has been reported a substantial number of articles based on CPG leads (especially 2B pencil) as a substrate for working electrodes in either rod or paste form for electrochemical sensing of various analytes , .…”

Section: Introductionmentioning

confidence: 99%

Covalently Anchored p‐Aminobenzene Sulfonate Multilayer on a Graphite Pencil Lead Electrode: A Highly Selective Electrochemical Sensor for Dopamine

Devaramani

Sreeramareddygari

Reddy³

et al. 2017

Electroanalysis

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An electrochemical sensor for dopamine (DA) has been developed based on the electrografting of 4‐aminobenzene sulfonic acid (4‐ABSA) onto the graphite pencil lead electrode (GPLE). The process of covalent anchoring and presence of 4‐ABSA on the GPLE was studied using cyclic voltammetry and electrochemical impedance spectroscopy. Electrochemical behaviour of the sensor towards DA, ascorbic acid (AA), and uric acid (UA) was studied in detail in phosphate buffer of pH 7. After optimizing the various parameters that influence the differential pulse voltammetric (DPV) signal for DA, the sensor exhibited a linear response over the 0.5 – 10 μmol⋅L‐1concentration range with a limit of detection, 0.095 μmol⋅L‐1 (at an S/N of 3). The sensor can selectively quantify DA even in the presence of 1 mmol⋅L‐1 AA. Distinct DPV signals were obtained for DA (at 0.191 mV vs. Ag/AgCl) and for UA (at 0.343 mV vs. Ag/AgCl). The sensor is highly selective, sensitive and stable. It was applied to the quantification of DA in injections and urine. Recovery studies were done by spiking both the real samples with a known quantity of DA.

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Section: Introductionmentioning

confidence: 99%

Covalently Anchored p‐Aminobenzene Sulfonate Multilayer on a Graphite Pencil Lead Electrode: A Highly Selective Electrochemical Sensor for Dopamine

Devaramani

Sreeramareddygari

Reddy³

et al. 2017

Electroanalysis

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“…To enable selective detection of the analyte, the electrode surface of these sensors has been modified with DNA or oligonucleotide based coatings, [13][14][15] functional sol-gel silica films, [16] or dropcast and electropolymerized thin films. [17][18][19] Another interesting materials platform for the fabrication of sensory coatings is polymer brushes. Polymer brushes are dense assemblies of polymer chains that are attached by one chain end to an underlying substrate.…”

Section: Introductionmentioning

confidence: 99%

Voltammetric Detection of Hg2+ Using Peptide-Functionalized Polymer Brushes

Schüwer¹,

Tercier‐Waeber²,

Danial³

et al. 2012

Aust. J. Chem.

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Polymer brushes grafted by surface-initiated atom transfer radical polymerization (SI-ATRP) from the surface of Ir-based microelectrode arrays are explored as a platform for the fabrication of sensory coatings for the voltammetric detection of Hg 2þ . The polymer brush coatings are post-modified with a metallothionein derived peptide to enable the selective detection of Hg 2þ . The performance of the polymer brush modified microelectrode arrays was evaluated using both cyclic voltammetry (CV) as well as square-wave anodic stripping voltammetry (SWASV) experiments. These studies revealed that the polymer brush based coatings allowed the selective detection of Hg 2þ with detection limits in the subnanomolar range.

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The 4‐(Dimethylamino) benzaldehyde‐4‐ethylthiosemicarbazone as Ionophore for Mercury(II) Solid State Selective Electrode

Tahir¹,

Salhin²,

Saad³

et al. 2012

Electroanalysis

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Hg(II) has formed a soluble complex with 4‐(dimethylamino) benzaldehyde‐4‐ethylthiosemicarbazone (DMABET) in methanol with a molar ratio of mercury(II):DMABET of 1 : 4. The formation constant (Kf) and Gibbs free energy (▵G) of the complex showed that the formation of the complex was favorable. The DMABET was investigated as ionophore for Hg(II)‐ion selective electrode (ISE). At optimum pH 1–5 the proposed Hg(II)‐ISE showed an almost Nernstian slope at 27.8±1 mV, with linear regression coefficient, R2=0.995 and a detection limit of 5×10−6 M. There was no serious interference from silver(I) with selectivity coefficient 5.69×10−3. The electrode life span was more than 3 months. It has been applied for real water sample analysis and the results were in good agreement with the standard method.

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The Electropolymerization of 2,6‐Diaminopyridine and Its Application as Mercury Ion Selective Electrode

Cited by 13 publications

References 34 publications

Covalently Anchored p‐Aminobenzene Sulfonate Multilayer on a Graphite Pencil Lead Electrode: A Highly Selective Electrochemical Sensor for Dopamine

Covalently Anchored p‐Aminobenzene Sulfonate Multilayer on a Graphite Pencil Lead Electrode: A Highly Selective Electrochemical Sensor for Dopamine

Voltammetric Detection of Hg2+ Using Peptide-Functionalized Polymer Brushes

The 4‐(Dimethylamino) benzaldehyde‐4‐ethylthiosemicarbazone as Ionophore for Mercury(II) Solid State Selective Electrode

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