Nanocomposite Based Carbon Paste Electrode for Selective Analysis of Copper

A novel carbon paste ion selective electrode for determination of trace amount of lutetium was prepared. Modified (functionalized) multiwalled carbon nanotubes (f‐MWCNTs) were used for improvement of a lutetium carbon paste sensor response. MWCNTs have a good conductivity which helps the transduction of the signal in carbon paste electrode. In this work it is shown that introducing certain functional groups on MWCNTs can improve the electrode signals. The electrode composition of 20 % paraffin oil, 56 % graphite powder, 18 % ionophore and 6 % f‐MWCNTs showed the stable potential response to Lu3+ ions with the Nernstian slope of 21.1 (±0.3) mV decade−1 over a wide linear concentration range of 1.0×10−6–1.0×10−1 mol L−1. The electrode has fast response time (<15 s) and long term stability (about one month).

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Novel Lu³⁺ Carbon Paste Electrode Based on Functionalized Multiwalled Carbon Nanotubes

Tamaddon

Amiri

Hazini

2014

Electroanalysis

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Application of Novel Zn‐Ferrite Modified Glassy Carbon Paste Electrode as a Sensor for Determination of Cd(II) in Waste Water

et al. 2014

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This paper describes the preparation of a new sensor based on Zn‐ferrite modified glassy carbon paste electrode and its electrochemical application for the determination of trace Cd(II) ions in waste waters using differential pulse anodic stripping voltammetry (DPASV). Different Zn/Ni ferrite nanoparticles were synthesized and characterized using scanning electron microscopy (SEM) and X‐ray powder diffraction (XRPD). The prepared ferrite nanoparticles were used for the preparation of Zn‐ferrite‐modified glassy carbon paste electrode (ZnMGCPE) for determination of Cd(II) at nanomolar levels in waste water at pH 5. The different parameters such as conditions of preparation, Zn2+/Ni2+/Fe2+ ratio and electrochemical parameters, percentage of modifier, accumulation time, pH and accumulation potential were investigated. Besides, interference measurements were also evaluated under optimized parameters. The best voltammetric response was observed for ZnFe2O4 modifier, when the percentage of modifier was 3 %, accumulation time 9 min, pH of supporting electrolyte 5 and accumulation potential −1.05 V. Thus prepared electrode displays excellent response to Cd(II) with a detection limit of 0.38 ppb, and selective detection toward Cd(II) was achieved.

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Highly cis‐Diastereoselective Synthesis of Coumarin‐Based 2,3‐Disubstituted Dihydrobenzothiazines by Organocatalysis

Khoobi

Ramazani

Foroumadi

et al. 2012

Helvetica Chimica Acta

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An efficient and organocatalyzed asymmetric reaction of phenacyl halides with coumarin‐based dihydrobenzothiazoles was developed to afford cis‐2,3‐disubstituted 3,4‐dihydro‐2H‐benzothiazines. This method provides a one‐step and highly diastereoselective route to a wide variety of coumarin‐based 3,4‐dihydro‐2H‐benzothiazines using the cheap and commercially available Cinchona alkaloid quinine hydrochloride.

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Nanocomposite Based Carbon Paste Electrode for Selective Analysis of Copper

Cited by 35 publications

References 56 publications

Novel Lu³⁺ Carbon Paste Electrode Based on Functionalized Multiwalled Carbon Nanotubes

Novel Lu³⁺ Carbon Paste Electrode Based on Functionalized Multiwalled Carbon Nanotubes

Application of Novel Zn‐Ferrite Modified Glassy Carbon Paste Electrode as a Sensor for Determination of Cd(II) in Waste Water

Highly cis‐Diastereoselective Synthesis of Coumarin‐Based 2,3‐Disubstituted Dihydrobenzothiazines by Organocatalysis

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Nanocomposite Based Carbon Paste Electrode for Selective Analysis of Copper

Cited by 35 publications

References 56 publications

Novel Lu3+ Carbon Paste Electrode Based on Functionalized Multiwalled Carbon Nanotubes

Novel Lu3+ Carbon Paste Electrode Based on Functionalized Multiwalled Carbon Nanotubes

Application of Novel Zn‐Ferrite Modified Glassy Carbon Paste Electrode as a Sensor for Determination of Cd(II) in Waste Water

Highly cis‐Diastereoselective Synthesis of Coumarin‐Based 2,3‐Disubstituted Dihydrobenzothiazines by Organocatalysis

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Novel Lu³⁺ Carbon Paste Electrode Based on Functionalized Multiwalled Carbon Nanotubes

Novel Lu³⁺ Carbon Paste Electrode Based on Functionalized Multiwalled Carbon Nanotubes