Development of a “Green” Paper-Based Voltammetric Platform for the On-Site Assay of Tl(I)

In this work, a “green” electrochemical paper-based device (ePAD) for the voltammetric determination of Tl(I) is described. A mini voltammetric cell was patterned on chromatographic paper by using screen printing to deposit three carbon electrodes and plotting with hydrophobic ink to form a circular...

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Bibliographic Details
Published inEngineering proceedings Vol. 48; no. 1; p. 6
Main Authors Katerina Kouseri, Irini Panagiotopoulou, Dionysios Soulis, Anastasios Economou, Mamas Prodromidis, Christos Kokkinos
Format Journal Article
LanguageEnglish
Published MDPI AG 01.09.2023
Subjects
anodic stripping voltammetry
paper-based
pen plotting
screen printing
thallium
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Summary:In this work, a “green” electrochemical paper-based device (ePAD) for the voltammetric determination of Tl(I) is described. A mini voltammetric cell was patterned on chromatographic paper by using screen printing to deposit three carbon electrodes and plotting with hydrophobic ink to form a circular assay zone. The sample was added to the assay zone (which was pre-loaded with Bi(III)) and Tl(I) was quantified using anodic stripping voltammetry (ASV). The experimental conditions and potential interferences were studied. The limit of detection was at the low μg L−1 level, indicating that these devices can serve successfully as fit-for-purpose disposable voltammetric sensors for Tl(I).
ISSN:2673-4591
DOI:10.3390/CSAC2023-14904