Akademik Veri Yönetim Sistemi
Van Yüzüncü Yıl Üniversitesi Mühendislik Fakültesi Dergisi, cilt.2, sa.2, ss.22-30, 2024 (Hakemli Dergi)
In this study, a voltammetric L-Histidine (His) sensor is being developed with glassy carbon electrode (GCE) modified with carbon nanotube (CNT) supported %3 Ru-Mo(80-20) bimetallic catalyst. The RuMo/CNT catalyst was prepared by sodium borohydride reduction method. It was identified by surface analytical methods like scanning electron microscopy (SEM) and X-ray diffraction (XRD). Characterization results reveal that this catalyst was successfully synthesized. The modified GCE's electrochemical activity was investigated using cyclic voltammetry (CV), differential pulse voltammetry (DPV), and electrochemical impedance spectroscopy (EIS). The Ru-Mo/CNT-modified GCE electrode has a sensitivity of 0.0002 mA/cm2 , a limit of detection (LOD) of 0.02 µM for histidine, and a lower limit of detection (LOQ) of 0.06 µM, according to electrochemical data. The findings demonstrate that the RuMo/CNT-modified GCE electrode is a promising catalyst for the sensitive detection of L-histidine and has been manufactured for the first time in the literature.