Sensitive determination of baicalein based on functionalized graphene loaded RuO2 nanoparticles modified glassy carbon electrode

被引:22
作者
Qiao, Jiantong [1 ]
Zhang, Yulong [1 ]
Lei, Sheng [1 ]
Liu, Zi [1 ]
Li, Gaiping [1 ]
Ye, Baoxian [1 ]
机构
[1] Zhengzhou Univ, Coll Chem & Mol Engn, Zhengzhou 450001, Henan, Peoples R China
基金
中国国家自然科学基金;
关键词
Baicalein; Reduced graphene oxide; RuO2; DPV; Electrochemical sensor; SCUTELLARIAE-RADIX; MAJOR FLAVONOIDS; LIQUID; OXIDE; PLATFORM; CHRYSIN; CELLS; ACID;
D O I
10.1016/j.talanta.2018.06.047
中图分类号
O65 [分析化学];
学科分类号
070302 ; 081704 ;
摘要
The nanocomposite of ruthenium oxide (RuO2) loaded on Poly-(dimethyldiallylammonium chloride) (PDDA) functionalized reduced graphene oxide (RuO2-PDDA-rGO) was synthesized based on a one-step method. Based on the RuO2-PDDA-rGO modified glassy carbon electrode (GCE), a new electrochemical sensor (RuO2-PDDA-rGO/GCE) was fabricated and used in detection of baicalein for the first time. Compared with other reported electrochemical sensors for the detection of baicalein, the prepared RuO2-PDDA-rGO/GCE had a wider linear range (2-400 nM) and lower detection limit (0.6 nM, S/N = 3). The other advantages were the excellent repeatability of proposed method and good stability of prepared sensor.
引用
收藏
页码:714 / 721
页数:8
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