Fabrication of ion selective electrode for detection of lead ion based on aqueous sol-gel method

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Golmaghani ebrahimi Elham; FAZLI MOSTAFA; BAGHERI AHMAD

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Journal: JOURNAL OF APPLIED CHEMISTRY Year:2018 | Volume:13 | Issue:48 Page(s): 269-283

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Title

Fabrication of ion selective electrode for detection of lead ion based on aqueous sol-gel method

Author(s)

Golmaghani ebrahimi Elham | FAZLI MOSTAFA | BAGHERI AHMAD | Issue Writer Certificate

Keywords

Sol-gelQ1

Ion selective electrodeQ2

Oxalic acidQ1

Lead ionQ1

Abstract

Ion selective electrodes (ISE) based on sol– gel process usingtetraethoxysilane(TEOS), diethoxydimethylsilane(DEDMS) and Oxalic acid as ionophore, was successfully developedfor detection of Pb2+in aqueous solution. The response of the electrode and also its characterization were estimated by different methods includingpotentiometry measurement, Fourier TransformInfrared (FTIR) and scanning electron microscopy (SEM). The results indicate that the electrode response depends onionophore concentration. In these Ion selective electrodes, 0. 5 wt. % Oxalic acid gives the best sensitivity for Pb2+. The sol– gel electrodeshows linear response with Nernstian slope of 28. 63 mV/decade toward Lead ionover the concentration range 6. 1×10– 6 to 1. 7×10– 2. Also, the electrodes shown detection limits of 1. 0×10− 7 M. The response time of this electrode was obtained 15 sec. at linear dynamic range and lifetime of nearly 2 months. The electrodeis suitable for use in aqueous solutions in a wide pH range of 4– 6. All the obtained results indicate that the proposed Lead ion sensor electrode have good reproducibility, repeatability, stability, selectivity and a fast response time.

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APA: Copy

Golmaghani ebrahimi, Elham, FAZLI, MOSTAFA, & BAGHERI, AHMAD. (2018). Fabrication of ion selective electrode for detection of lead ion based on aqueous sol-gel method. JOURNAL OF APPLIED CHEMISTRY, 13(48 ), 269-283. SID. https://sid.ir/paper/392577/en

Vancouver: Copy

Golmaghani ebrahimi Elham, FAZLI MOSTAFA, BAGHERI AHMAD. Fabrication of ion selective electrode for detection of lead ion based on aqueous sol-gel method. JOURNAL OF APPLIED CHEMISTRY[Internet]. 2018;13(48 ):269-283. Available from: https://sid.ir/paper/392577/en

IEEE: Copy

Elham Golmaghani ebrahimi, MOSTAFA FAZLI, and AHMAD BAGHERI, “Fabrication of ion selective electrode for detection of lead ion based on aqueous sol-gel method,” JOURNAL OF APPLIED CHEMISTRY, vol. 13, no. 48 , pp. 269–283, 2018, [Online]. Available: https://sid.ir/paper/392577/en

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