NDLI: Voltammetric determination of the endocrine disruptor diethylstilbestrol by using a glassy carbon electrode modified with a composite consisting of platinum nanoparticles and multiwalled carbon nanotubes

Content Provider	Springer Nature Link
Author	Hu, Xiaobin Zhang, Rongfei
Copyright Year	2016
Abstract	A nanocomposite consisting of multi-walled carbon nanotubes (MWCNTs) decorated with Pt nanoparticles (Pt-NPs) was synthesized via an ionic liquid-assisted method. The composite was characterized by transmission electron microscopy, X-ray diffraction patterns, and X-ray photo-electron spectroscopy. The results showed the Pt-NPs to be evenly deposited on the surface of the MWCNTs, with diameters ranging from about 2 nm to 3 nm. The nanocomposite was used to modify a glassy carbon electrode which then revealed a substantial catalytic activity for the oxidation of diethylstilbestrol (DES), best at a working potential of 0.73 V (vs. Ag/AgCl) at pH 7. The electrochemical oxidation mechanism is discussed. The peak current in square wave voltammetry is linearly related to the concentration of DES in the 0.1 to 25 μM range. The limit of detection (at an SNR of 3) is 12 nM. Graphical abstract A sensitive electrochemical sensor for the determination of diethylstilbestrol has been developed by modifying a glassy carbon electrode with a nanocomposite consisting of multi-walled carbon nanotubes decorated with platinum nanoparticles. The limit of detection is 12 nM.
Starting Page	3069
Ending Page	3076
Page Count	8
File Format	PDF
ISSN	00263672
Journal	Microchimica Acta
Volume Number	183
Issue Number	11
e-ISSN	14365073
Language	English
Publisher	Springer Vienna
Publisher Date	2016-09-27
Publisher Place	Vienna
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Pt/MWCNTs composites Diethylstilbestrol Ionic liquid Square wave voltammetry Hexacyanoferrate Randles-Sevcik analysis Transmission electron microscopy Nanochemistry Nanotechnology Characterization and Evaluation of Materials Analytical Chemistry Microengineering
Content Type	Text
Resource Type	Article
Subject	Analytical Chemistry

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