Highly Sensitive Aspartame Electrochemical Sensor in Beverages Sample Using Glassy Carbon Electrode Modified with Boron Doped Nanodiamond/ZnO Nanoparticles Composite
Penulis/Author
Ilmanda Zalzabhila Danistya Putri (1); Prastika Krisma Jiwanti (2); Ilmi Nur Indriani Savitri (4); Kiki Adi Kurnia (5); Dr. Widiastuti Setyaningsih, S.T.P., M.Sc. (6); Brian Yuliarto (7); Noviyan Darmawan (8)
Tanggal/Date
20 2024
Kata Kunci/Keyword
Abstrak/Abstract
This study reports an electrochemical sensor for detecting aspartame using square wave voltammetry (SWV) on ZnONP/BDDNP electrode. ZnONP/BDDNP was able to oxidize aspartame at a potential of 0.34 V in a phosphate buffer solution pH 2.0 with a current of 80.1 μA. The limit of detection (LOD) was found to be 0.07 μM, the limit of quantitation (LOQ) was 0.25 μM and sensitivity was 1.23 μA μM-1. The relative standard deviation (RSD) was 1.6%, less than 5% indicating that ZnONP/BDDNP has good precision. ZnONP/BDDNP showed better results compared with the BDDNP electrode. The developed method showed good linearity in the concentration range of 30-100 μM. This method was successfully applied to determine aspartame in beverage samples with a recovery range of 85-110%. This shows that ZnONP/BDDNP with the suggested method is potentially applied in practical used.
Rumpun Ilmu
Kimia
Bahasa Asli/Original Language
English
Level
Internasional
Status
Dokumen Karya
No
Judul
Tipe Dokumen
Aksi
1
Published manuscript.pdf
Bukti Published
2
form-L1-surat pernyataan penghargaan karya ilmiah sudah terbit-2024_WS.pdf
Dokumen Pendukung Karya Ilmiah (Hibah, Publikasi, Penelitian, Pengabdian)
