In situ Preparation of HNbMoO{sub 6}/C Nanocomposite for Sensitive Detection of Clenbuterol

Journal Article · Fri Nov 15 04:00:00 EST 2019 · Applied Biochemistry and Biotechnology

DOI:https://doi.org/10.1007/S12010-019-03054-6· OSTI ID:22927506

Wang, Mengjun; Zhu, Mengde; Wang, Yu; Fan, Zichun; Wu, Shining; Zhang, Xiaobo; Tong, Zhiwei ^[1]

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1. Huaihai Institute of Technology, School of Chemical Engineering (China)

In this paper, we synthesized HNbMoO{sub 6}/C composite through the calcination of octylamine-intercalated HNbMoO{sub 6} precursor. The resulting HNbMoO{sub 6}/C composite showed some new phases of MoO{sub 2}, MoO{sub 3}, NbO{sub 2}, Nb{sub 2}O{sub 5}, and carbon, which was fully confirmed via powder X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), selected area electron diffraction (SAED), and X-ray photoelectron spectroscopy (XPS) technologies. Besides, the HNbMoO{sub 6}/C hybrid was coated on glass carbon electrode to construct an electrochemical sensor for sensitive determination of clenbuterol. The electrochemical behaviors of clenbuterol on the prepared electrode were tested by cyclic voltammetry (CV) and differential pulse voltammetry (DPV) analysis. The results showed that the intercalated carbon can act as active sites to accelerate electron transfer. In addition, more exposed surface areas of the HNbMoO{sub 6}/C composite will facilitate the electrolyte to permeate. The oxidation peak current of clenbuterol was linearly related to its concentration in the range of 1.04 × 10{sup −5} to 7.51 × 10{sup −4} mol L{sup −1}, and the determination limit was calculated to be 3.03 × 10{sup −6} mol L{sup −1} (S/N = 3). This sensor exhibits excellent stability, reproducibility, specificity, and good recoveries when applied to monitor clenbuterol in real samples.

• OSTI ID: 22927506
• Journal Information: Applied Biochemistry and Biotechnology, Journal Name: Applied Biochemistry and Biotechnology Journal Issue: 3 Vol. 189; ISSN ABIBDL; ISSN 0273-2289
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
CALCINATION
CARBON
ELECTRON DIFFRACTION
MOLYBDENUM OXIDES
NANOCOMPOSITES
NIOBIUM OXIDES
SCANNING ELECTRON MICROSCOPY
SENSORS
TRANSMISSION ELECTRON MICROSCOPY
VOLTAMETRY
X-RAY DIFFRACTION
X-RAY PHOTOELECTRON SPECTROSCOPY