Han Cheng, Yanbing Pan, Tao Fang, Uchkun Ishimov, Awais Ihsan, Abrar Hussain, Ruiting Tian, Wenwen Ma, Jun Li, Xianju Huang
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引用次数: 0
Abstract
Caffeic acid (CA) and dihydrotanshinone I (DHT I) are two important natural products that have become a research hotspot because of their significant antioxidant, anti-inflammatory, and anti-tumour fields. Bimetallic gold‑selenium nanoparticles (AuSe-BNPs) were prepared using the water-bath reduction method, and a carbon fiber microelectrode modified by AuSe BNPs composites (AuSe-BNPs/CFME) was constructed for the detection of CA and DHT I. The electrochemical performance of the AuSe-BNPs/CFME was characterised by using cyclic voltammetry (CV), differential pulse voltammetry (DPV) and electrochemical impedance spectroscopy (EIS). The good electrical conductivity of AuSe BNPs/CFME was confirmed. CA concentration in the range of 1.0–10.0 μmol/L and DHT I concentration in the range of 0.1–1.0 μmol/L showed a good linear relationship with the oxidation peak currents, and the limits of detection (LODs) of 0.88 μmol/L and 0.0055 μmol/L, respectively. The modified electrode exhibited good anti-interference properties when coexisting with common ions or relevant active ingredients. It was applied to the determination of CA and DHT I in human serum, with recovery rates ranging from 99.1 % to 104.3 %, and can be used for the detection of actual samples.
期刊介绍:
The Chemical Engineering Journal is an international research journal that invites contributions of original and novel fundamental research. It aims to provide an international platform for presenting original fundamental research, interpretative reviews, and discussions on new developments in chemical engineering. The journal welcomes papers that describe novel theory and its practical application, as well as those that demonstrate the transfer of techniques from other disciplines. It also welcomes reports on carefully conducted experimental work that is soundly interpreted. The main focus of the journal is on original and rigorous research results that have broad significance. The Catalysis section within the Chemical Engineering Journal focuses specifically on Experimental and Theoretical studies in the fields of heterogeneous catalysis, molecular catalysis, and biocatalysis. These studies have industrial impact on various sectors such as chemicals, energy, materials, foods, healthcare, and environmental protection.