Polymeric Sulphaquinoxaline Cd(II) Complex-based Sensors for Cd(II) Determination in Real Samples

The promising sensing properties of sulphaquinoxaline Cd(II) complex towards Cd(II) were reported via the fabrication of polyvinyl chloride (PVC) and modified carbon paste (MCP) electrodes. The developed sensors applied for Cd(II) determination in water, tea, rice, and cosmetic samples exhibited exc...

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Bibliographic Details
Published inJournal of analytical chemistry (New York, N.Y.) Vol. 77; no. 6; pp. 773 - 784
Main Authors Ola R. Shehab, Dayiem, Marwa Abd, Youssef, Ahmed F. A.
Format Journal Article
LanguageEnglish
Published Moscow Pleiades Publishing 2022
Springer Nature B.V
Subjects
Analytical Chemistry
Cadmium compounds
Chemistry
Chemistry and Materials Science
Electrodes
Polyvinyl chloride
Response time
Sensors
sulphaquinoxaline
sensing
polymeric Cd(II) complexes
density functional theory
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Summary:The promising sensing properties of sulphaquinoxaline Cd(II) complex towards Cd(II) were reported via the fabrication of polyvinyl chloride (PVC) and modified carbon paste (MCP) electrodes. The developed sensors applied for Cd(II) determination in water, tea, rice, and cosmetic samples exhibited excellent performances with detection limits of 8 × 10 –7 and 2.1 × 10 –7 M as well as fast response time (about 10 s) for MCP and PVC sensors, respectively. No significant changes in the Nernstian slope by changing the solution pH in the ranges of 4.0–9.0 and 3.0–6.5 for MCP and PVC electrodes, respectively, or by rising the temperature to 60°C were observed.
ISSN:1061-9348
1608-3199
DOI:10.1134/S1061934822060119