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Arif, Moh Syaiful
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Chemistry

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MINI REVIEW: PEMBUATAN ESI ASAM PEROKSIDA (H2O2) DARI KAWAT TERSALUT AgNPs TERMODIFIKASI KITOSAN Suriyani, Suriyani; Alimuddin, Alimuddin; Arif, Moh Syaiful
PROSIDING SEMINAR KIMIA Vol 3 No 1 (2024): Prosiding SNK 2024
Publisher : Jurusan Kimia Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Mulawarman

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This mini-review discusses the development of peroxide acid (H₂O₂) ion-selective electrodes (ISE) from chitosan-modified AgNPs-coated wires. The review highlights the importance of AgNPs in enhancing electrocatalytic activity and conductivity, which are crucial for the development of high-performance electrochemical sensors. Chitosan is used as a stabilizing agent for AgNPs due to its biocompatibility and chemical stability. The coated wire-type ion-selective electrodes are utilized because this method has advantages such as rapid and accurate analysis, high selectivity, no need for separation, a wide measurement range, and low analysis costs. The methodology used in this study involves gathering information from various literature, which is then compiled into detailed case studies. This review aims to integrate information on the modification of AgNPs with chitosan for the development of new ion-selective electrodes (ISE) capable of efficiently detecting H₂O₂. Keywords: H₂O₂, Wire-Coated ISE, AgNPs Modified with Chitosan
MINI REVIEW: PENERAPAN BERBAGAI IONOFOR DALAM PEMBUATAN ELEKTRODA SELEKTIF ION (ESI) Pb2+ SECARA POTENSIOMETRI Padang, Dea Angelina Tiku; Yusuf, Bohari; Arif, Moh Syaiful
PROSIDING SEMINAR KIMIA Vol 3 No 1 (2024): Prosiding SNK 2024
Publisher : Jurusan Kimia Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Mulawarman

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This mini review provides a brief overview of the application of various types of ionophores in the fabrication of ion-selective electrodes (ISE) for detecting Pb2+ ions using the potentiometric method. Ionophores are key components in ISEs that determine the selectivity and sensitivity of the electrode toward the target ion. The purpose of this review is to provide insights into selecting effective ionophores for potentiometric applications in detecting Pb2+ contamination in the environment. The method used in this review involves screening articles on google scholar, research gate, and garuda published between 2015 and 2022. In this review, five types of ionophores were identified as active membrane materials for the fabrication of Pb2+ ISEs, including chitosan; 1,10-dibenzyl-1,10-diaza-18-crown-6 with anionic site KTCPB; dithizone; 1,10-diaza-18-crown-6 with anionic site KTCPB; and pt-butylcalix[4]arena with anionic site KTCPB. These ionophores were found to have Nernst values of 29.1, 29.64, 29.5, 27.61, 26.15, and 27.61 mV/decade, respectively. Dithizone was identified as the most effective ionophore for detecting Pb2+ due to its Nernst value being closest to the theoretical Nernst value of 29.57 mV/decade. Keywords: Ion-Selective Electrode (ISEs), ionophores, potentiometry, Pb2+ ions, Nernst factor
Co-Authors Bohari Yusuf Padang, Dea Angelina Tiku Suriyani Suriyani, Suriyani