Flow Injection Analysis of Aziprotryne Using an Electrochemical Sensor Based on Cobalt Phthalocyanine Modified Carbon Paste Electrode

Chicharro, Manuel; Zapardiel, Antonio; Bermejo, Esperanza; Madrid, Elena; Rodrı́guez, Cristina

doi:10.1002/1521-4109(200207)14:13<892::aid-elan892>3.0.co;2-#

Cited by 10 publications

(1 citation statement)

References 15 publications

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“…Other studies by Wring et al [ 11 ] have reported CoPC to be electrocatalytic towards the analytes coenzyme A and reduced glutathione. CoPC has also been used extensively towards the sensing of hydrazine where in many cases the literature highlights its excellent electrocatalytic properties [ 11 – 14 ], while additionally other toxic nitrogenous compounds such as aziprotryne [ 15 ] and amitrole [ 16 ] have been targeted.…”

Section: Introductionmentioning

confidence: 99%

Cobalt Phthalocyanine Modified Electrodes Utilised in Electroanalysis: Nano-Structured Modified Electrodes vs. Bulk Modified Screen-Printed Electrodes

Foster

Pillay

Metters

et al. 2014

Sensors

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Cobalt phthalocyanine (CoPC) compounds have been reported to provide electrocatalytic performances towards a substantial number of analytes. In these configurations, electrodes are typically constructed via drop casting the CoPC onto a supporting electrode substrate, while in other cases the CoPC complex is incorporated within the ink of a screen-printed sensor, providing a one-shot economical and disposable electrode configuration. In this paper we critically compare CoPC modified electrodes prepared by drop casting CoPC nanoparticles (nano-CoPC) onto a range of carbon based electrode substrates with that of CoPC bulk modified screen-printed electrodes in the sensing of the model analytes l-ascorbic acid, oxygen and hydrazine. It is found that no “electrocatalysis” is observed towards l-ascorbic acid using either of these CoPC modified electrode configurations and that the bare underlying carbon electrode is the origin of the obtained voltammetric signal, which gives rise to useful electroanalytical signatures, providing new insights into literature reports where “electrocatalysis” has been reported with no clear control experiments undertaken. On the other hand true electrocatalysis is observed towards hydrazine, where no such voltammetric features are witnessed on the bare underlying electrode substrate.

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Section: Introductionmentioning

confidence: 99%

Cobalt Phthalocyanine Modified Electrodes Utilised in Electroanalysis: Nano-Structured Modified Electrodes vs. Bulk Modified Screen-Printed Electrodes

Foster

Pillay

Metters

et al. 2014

Sensors

View full text Add to dashboard Cite

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Carbon Paste Electrodes in Facts, Numbers, and Notes: A Review on the Occasion of the 50‐Years Jubilee of Carbon Paste in Electrochemistry and Electroanalysis

et al. 2008

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This article reviews the electrochemistry and electroanalytical applications of carbon paste-based electrodes, sensors, and detectors on the occasion of the half-of-century anniversary since the discovery of carbon paste. The review (with 333 references) has been prepared in the form of a retrospective compilation presenting the field by means of various facts, notes, data, surveys, and summaries, including numerous rarities or curiosities that illustrate the individual achievements and milestones. Carbon paste-based electrodes are discussed in their entirety by covering all important areas of the field, starting from basic characterization of carbon paste as the electrode material, via its typical physicochemical and electrochemical properties or specific features, up to a representative documentation of their applicability in electrochemical and electroanalytical measurements.

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Electrocatalytic and Analytical Response of Cobalt Phthalocyanine Modified Carbon Paste Electrodes Towards Antimalarial Endoperoxide Artemisinin

2009

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A cobalt phthalocyanine modified carbon paste electrode was constructed for the analysis of artemisinin in Artemisia annua plant. Artemisinin, a sesquiterpene endoperoxide, is a novel, important antimalarial drug and is used in the therapy against Plasmodium falciparum. The developed cobalt phthalocyanine modified electrode exhibited a significant electrocatalytic activity in presence of artemisinin when using cyclic and differential pulse voltammetry. Under optimized conditions in phosphate buffer of pH 7 a well defined voltammetric peak appeared at about À 500 mV vs. Ag/AgCl. The differential pulse voltammetric peak current of artemisinin was increased linearly with the concentration range of 2.1 Â 10 À5 to 5.3 Â 10 À4 M (R ¼ 0.9997). The limit of detection (LOD) was found to be 6.5 Â 10 À6 M. The modified electrode was successfully tested for detecting artemisinin in complex plant materials.

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Flow Injection Analysis of Aziprotryne Using an Electrochemical Sensor Based on Cobalt Phthalocyanine Modified Carbon Paste Electrode

Cited by 10 publications

References 15 publications

Cobalt Phthalocyanine Modified Electrodes Utilised in Electroanalysis: Nano-Structured Modified Electrodes vs. Bulk Modified Screen-Printed Electrodes

Cobalt Phthalocyanine Modified Electrodes Utilised in Electroanalysis: Nano-Structured Modified Electrodes vs. Bulk Modified Screen-Printed Electrodes

Carbon Paste Electrodes in Facts, Numbers, and Notes: A Review on the Occasion of the 50‐Years Jubilee of Carbon Paste in Electrochemistry and Electroanalysis

Electrocatalytic and Analytical Response of Cobalt Phthalocyanine Modified Carbon Paste Electrodes Towards Antimalarial Endoperoxide Artemisinin

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