A new potentiometric thiosalicylamide-functionalized polysiloxane carbon paste electrode for lead(II) determination

Saadeh, Salman M. and Abu-Shawish, Hazem M. and Abed-Almonem, Khalid I. and Baraka, Alaa and abu Mkhada, Ayat and Safi, Walaa (2012) A new potentiometric thiosalicylamide-functionalized polysiloxane carbon paste electrode for lead(II) determination. Journal of Electroanalytical Chemistry, 687. pp. 11-17. ISSN 15726657

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Abstract

Thiosalicylamide-functionalized polysiloxane was prepared, characterized and utilized as the ionophore in construction of a lead(II)-selective carbon paste electrode. This new electrode exhibited a Nernstian response for lead ion over a wide concentration range of 4.3 × 10−6–1.0 × 10−2 M with a detection limit of 8.7 × 10−7 M within pH range 4.5–7.2 in a short response ∼5 s. The electrode systematically showed satisfactory reproducibility and sensitivity as well as good selectivity for lead ion with respect to a large number of inorganic cations and anions. Finally, it was satisfactorily used as an indicator electrode in complexometric titration with EDTA and determination of lead(II) in miscellaneous samples such as water samples and commercial lipsticks.

Item Type: Article
Subjects: Q Science > QD Chemistry
Depositing User: أ.د. حازم محمد عبد الحميد أبو شاويش
Date Deposited: 14 Mar 2018 09:54
Last Modified: 14 Mar 2018 09:54
URI: http://scholar.alaqsa.edu.ps/id/eprint/384

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