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Title of Journal: Microchim Acta

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Abbravation: Microchimica Acta

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Springer Vienna

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DOI

10.1016/0169-5002(91)90027-4

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1436-5073

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Voltammetric determination of the endocrine disrup

Authors: Xiaobin Hu Rongfei Zhang
Publish Date: 2016/09/27
Volume: 183, Issue: 11, Pages: 3069-3076
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Abstract

A nanocomposite consisting of multiwalled carbon nanotubes MWCNTs decorated with Pt nanoparticles PtNPs was synthesized via an ionic liquidassisted method The composite was characterized by transmission electron microscopy Xray diffraction patterns and Xray photoelectron spectroscopy The results showed the PtNPs 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 073 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 01 to 25 μM range The limit of detection at an SNR of 3 is 12 nMA sensitive electrochemical sensor for the determination of diethylstilbestrol has been developed by modifying a glassy carbon electrode with a nanocomposite consisting of multiwalled carbon nanotubes decorated with platinum nanoparticles The limit of detection is 12 nM

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