pp. 4167-4176
S&M3474 Research Paper of Special Issue https://doi.org/10.18494/SAM4599 Published: December 19, 2023 Sensitive and Selective Electrochemical Sensor for Antimony Using Boron-doped Diamond Nanoparticles [PDF] Prastika Krisma Jiwanti, Moh. Agus Rismafullah, Aning Purwaningsih, Md Shalauddin, Shamima Akhter, Wan Jeffrey Basirun, and Intan Nurul Rizki (Received July 24, 2023; Accepted August 23, 2023) Keywords: antimony, boron-doped diamond, screen-printed electrode, clean water
In this study, boron-doped diamond nanoparticles modified on the surface of a screen-printed electrode (SPE) were prepared for the sensitive and selective determination of Sb3+ using square wave voltammetry. The effect of electrochemical parameters such as the type of supporting electrolyte, pH, signal per background, and scan rate on the sensitivity of the sensor for the detection of Sb3+ was investigated. Under optimized conditions with an amplitude of 0.05 V, a frequency of 50 Hz, and an E-step of 0.05 V, the square wave voltammogram between −1.0 and 1.0 V gave a limit of detection of 2.41 × 10−8 M for an Sb3+ concentration range from 0.19 to 0.59 μM. The method was used to determine Sb3+ ions in river water with satisfactory results. The modified electrode displayed benefits such as high sensitivity and selectivity, long-term stability, easy preparation, and wide linear range.
Corresponding author: Prastika Krisma JiwantiThis work is licensed under a Creative Commons Attribution 4.0 International License. Cite this article Prastika Krisma Jiwanti, Moh. Agus Rismafullah, Aning Purwaningsih, Md Shalauddin, Shamima Akhter, Wan Jeffrey Basirun, and Intan Nurul Rizki, Sensitive and Selective Electrochemical Sensor for Antimony Using Boron-doped Diamond Nanoparticles, Sens. Mater., Vol. 35, No. 12, 2023, p. 4167-4176. |