Journal ArticleDOI
Determination of traces of copper by anodic stripping voltammetry after its preconcentration via an ion-exchange route at carbon paste electrodes modified with vermiculite
TLDR
In this paper, Vermiculite clay was exploited to prepare modified carbon paste electrodes (CPEs), showing attractive ability to efficiently preconcentrate trace copper(II) prior to its voltammetric determination.About:
This article is published in Analytica Chimica Acta.The article was published on 1995-04-20. It has received 40 citations till now. The article focuses on the topics: Anodic stripping voltammetry & Supporting electrolyte.read more
Citations
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Journal ArticleDOI
Sensors and biosensors based on clay-modified electrodes: new trends
TL;DR: Clay-modified electrodes (CLMEs) have received attention in the development of electrochemical sensors and biosensors as discussed by the authors, and the analytical applications reported for CLME range from the preconcentration method applied to the detection of metal cations or organic molecules (i.e., water pollutants and drugs), to electrocatalytic sensors involving intercalated redox mediators in the electrochemical detection process, and finally to amperometric and potentiometric sensors.
Journal ArticleDOI
Voltammetric detection of lead(II) and mercury(II) using a carbon paste electrode modified with thiol self-assembled monolayer on mesoporous silica (SAMMS).
TL;DR: The anodic stripping voltammetry at a carbon paste electrode modified with thiol terminated self-assembled monolayer on mesoporous silica (SH-SAMMS) provides a new sensor for simultaneous detection of lead (Pb2+) and mercury (Hg2+) in aqueous solutions.
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Simultaneous detection of cadmium, copper, and lead using a carbon paste electrode modified with carbamoylphosphonic acid self-assembled monolayer on mesoporous silica (SAMMS)
TL;DR: In this paper, a new sensor was developed for simultaneous detection of cadmium (Cd 2+ ), copper (Cu 2+) and lead (Pb 2+ ) based on the voltammetric response at a carbon paste electrode modified with carbamoylphosphonic acid (acetamide phosphonic acid) self-assembled monolayer on mesoporous silica (Ac-Phos SAMMS).
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Voltammetric detection of copper(II) at a carbon paste electrode containing an organically modified silica
TL;DR: A carbon paste electrode modified with aminopropyl-grafted silica gel (APS) was evaluated as an electrochemical sensor for copper species in aqueous medium as discussed by the authors.
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Evaluation of a carbon paste electrode modified with organofunctionalised SBA-15 nanostructured silica in the simultaneous determination of divalent lead, copper and mercury ions
TL;DR: The results indicate that this electrodes modified with SBA-15 nanostructured silica organofunctionalised with 2-benzothiazolethiol is sensitive and effective for simultaneous determination of Pb2+, Cu2+ and Hg2+ in the analysed samples.
References
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Journal ArticleDOI
Chemically modified carbon paste electrodes in voltammetric analysis
TL;DR: A review of chemically modified carbon paste electrodes (CMCPEs) and their use in voltammetric analysis is presented in this paper, where different methods of modification as well as the types of interaction between substrate and modifier are discussed.
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Clay-modified electrodes: a review
TL;DR: In this article, it was shown that the conductivity of the film towards anionic species depends upon the swelling of the clay, which depends on the electrolyte concentration and speciation.