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All Journal Jurnal Periodic Jurusan Kimia UNP
Putri, Yunisa Anugrah
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Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Energy Materials Science & Nanotechnology

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Pengaruh Supporting Electrolyte Pada Penentuan Formaldehida Secara Voltametri Siklik Menggunakan Pencil Lead Electrode (PLE) Modifikasi Lapisan Tipis Perak Putri, Yunisa Anugrah; Sari, Trisna Kumala; Oktavia, Budhi; Nizar, Umar Kalmar
Periodic Vol 13, No 1 (2024): PERIODIC
Publisher : Departemen Kimia FMIPA UNP

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/periodic.v13i1.124516

Abstract

Formaldehyde was detected electrochemically using a pencil lead electrode modified with a thin layer of silver (Ag/PLE). Modification of the silver thin layer was carried out by sweeping-potential electrodeposition using the cyclic voltammetry method. This study aims to study the response of PLE and Ag/PLE for determination of formaldehyde and also to determine the optimum conditions of the supporting electrolyte used in the measurement of formaldehyde. The results showed that Ag/PLE provided better performance than PLE and 0.1 M KOH was the optimum supporting electrolyte. Measurement of formaldehyde using Ag/PLE electrodes with a concentration of 10 mM of test analyte. The oxidation peak of formaldehyde is present at a potential of 0.054 Volt.
Co-Authors Budhi Oktavia Nizar, Umar Kalmar Sari, Trisna Kumala