Determination of Trace Amounts of Copper in Tap Water Samples with a Calix[4]arene Modified Carbon Paste Electrode by Differential Pulse Anodic Stripping Voltammetry

Canpolat, Esra Çelik; Şar, Erdem; Coşkun, Naciye Yılmaz; Cankurtaran, Özlem

doi:10.1002/elan.200603829

Cited by 42 publications

(13 citation statements)

References 45 publications

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“…It is better than some other reports. 6,12,25,[27][28][29]31 Reproducibility of this work was also very good. Accumulation time was lower compared to some last reports.…”

Section: Discussionsupporting

confidence: 57%

See 1 more Smart Citation

Stripping voltammetric determination of copper (II) on an overoxidized polypyrrole functionalized with Nitroso-R

Mohadesi¹,

Salmanipour²,

Mohammadi³

et al. 2008

J. Braz. Chem. Soc.

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No presente trabalho é apresentado um método para a determinação de Cu em amostras de cabelo humano e água por voltametria de redissolução anódica de pulso diferencial. Foi provado que a eletropolimerização do pirrol ocorre em presença do ânion dopante Nitroso-R. O polipirrol dopado com Nitroso-R foi deposido sobre a superfície da platina, e reage com Cu(II) em pHs neutros, originando um complexo. Essa complexação entre o Nitroso-R e o Cu(II) produz o acúmulo de Cu(II) na superfície a partir de a circuito aberto. O eletrodo resultante com Cu(II) complexado foi então transferido para um tampão de acetato, e submetido a voltametria de redissolução anódica, promovendo o aparecimento de um pico de corrente a +0,08 V. Depois da avaliação do comportamento funcional analítico foi construído um gráfico de calibração a partir de 1,2 a 243,9 ng mL -1 e o limite de detecção foi de 0,7 ng mL -1 . O método foi utilizado para a determinação de íons cobre em amostras de água e cabelo humano. Os resultados indicam a capacidade do método para a determinação deste íon em amostras reais. Além disso, a rápida e conveniente regeneração do eletrodo permite sua utilização em várias análises.In the present paper a method for the determination of Cu in human hair and water samples by differential pulse anodic stripping voltammetry is presented. It has been proven that pyrrole electropolymerizes in present of Nitroso-R as dopant anion. Nitroso-R doped in polypyrrole film coated on platinum surface then reacts with Cu(II) in neutral pHs giving rise to a complex. This complexation between Nitroso-R and Cu(II) achieves the accumulation of Cu(II) from the sample solutions to the electrode surface at open circuit condition. The resulting electrode with complexed Cu(II) can then transfer to an acetate buffer and subject to anodic stripping voltammetry which promotes the appearance of a peak at +0.08 V. After the evaluation of the analytical performance a calibration graph was constructed from 1.2 to 243.9 ng mL -1 and the detection limit was 0.7 ng mL -1 . The method was used for determination of copper ions in water and human hair samples. The results indicate the ability of method for the determination of this ion in real samples. Also, the rapid and convenient regeneration of electrode allows the use of a single modified electrode in multiple analyses.

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“…It is better than some other reports. 6,12,25,[27][28][29]31 Reproducibility of this work was also very good. Accumulation time was lower compared to some last reports.…”

Section: Discussionsupporting

confidence: 57%

“…Accumulation time was lower compared to some last reports. 12,25,[27][28][29][30][31] Time spent for the preparation of the electrode was very lower than some other techniques. 12,26,30 This work also shows wider linear range compared to some other reports.…”

Section: Discussionmentioning

confidence: 82%

Stripping voltammetric determination of copper (II) on an overoxidized polypyrrole functionalized with Nitroso-R

Mohadesi¹,

Salmanipour²,

Mohammadi³

et al. 2008

J. Braz. Chem. Soc.

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“…Examples of macrocyclic CPE modifiers with "more or less planar geometries" are: crown ethers (18-crown-6 [783][784][785] or dibenzo-18-crown-6 783,785 ), thiacrown compounds, 786 macrocyclic thiohydrazone, 787 or tetraazamacrocyclic compounds of the cyclam family 788 ; CPEs modified with such macrocyclic derivatives were used for various purposes such as electrocatalytic, voltammetric or potentiometric detection of metal ions or organics. In addition, cyclodextrins [789][790][791] or calixarenes, [792][793][794] both exhibiting very rich host-guest chemistry, have been incorporated into CPEs and subsequently used as sensors for metal ions and organic pollutants. it is easy to see the cup shape of the molecule likely to act as a host for guest species.…”

Section: Macrocyclic Compoundsmentioning

confidence: 99%

Electrode Materials (Bulk Materials and Modification)

Walcarius

Etienne

Herzog

et al. 2014

Environmental Analysis by Electrochemical Sensors and Biosensors

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“…Sometimes CPE is modified by films of metals and their oxides [202][203][204][205][206][207][208][209][210][211][212][213][215][216]. The electrode is modified most frequently by crown compounds [216][217][218][219][220][221], calixarenes [222], cyclodextrins [223][224][225], nonfunctionalized and functionalized silica [226][227][228][229][230][231][232][233][234][235][236][237][238][239][240][241][242][243], clay minerals (vermiculite and montmorillonite) [244][245][246][247][248][249]…”

Section: Carbon-paste Electrodesmentioning

confidence: 99%

Modified carbon-containing electrodes in stripping voltammetry of metals

Stozhko

Малахова

Fyodorov

et al. 2008

J Solid State Electrochem

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Papers dealing with modified electrodes made of carbon materials and composites for use in stripping voltammetry of metals have been reviewed. The review consists of two parts, of which the first considers applications of modified glassy carbon and carbon paste electrodes, while the second describes diverse modified carbon-containing composite and microscopic electrodes. Information about modifiers, electrode modification methods, conditions, and limits of detection of elements in different materials has been tabulated. The review covers 550 papers published in Russia and abroad between 1990 and the first half of 2007.

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Determination of Trace Amounts of Copper in Tap Water Samples with a Calix[4]arene Modified Carbon Paste Electrode by Differential Pulse Anodic Stripping Voltammetry

Cited by 42 publications

References 45 publications

Stripping voltammetric determination of copper (II) on an overoxidized polypyrrole functionalized with Nitroso-R

Stripping voltammetric determination of copper (II) on an overoxidized polypyrrole functionalized with Nitroso-R

Electrode Materials (Bulk Materials and Modification)

Modified carbon-containing electrodes in stripping voltammetry of metals

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