E3S Web Conf.
Volume 78, 20192018 International Seminar on Food Safety and Environmental Engineering (FSEE 2018)
|Number of page(s)||5|
|Section||Environmental Biotechnology and Environmental Equipment|
|Published online||15 January 2019|
Gold-nanoparticles-graphene modified glassy carbon electrode for trace detection of lead ions
College of Life Information Science and Instrument Engineering, Hangzhou Dianzi University, Hangzhou 310018, China
2 Department of Chemistry, Chungnam National University, Daejeon, Korea
* Corresponding author: firstname.lastname@example.org,cn
In order to fulfill rapid and trace detection of heavy metals, in the study, gold-nanoparticlesgraphene modified glass carbon electrodes were used to detect lead(Pb(II)) ions. The lead ion (Pb(II)) standard sample in acetic acid-sodium acetate buffer solution was detected by the modified electrode, and the detection conditions were optimized. Under the optimized conditions, in the buffer solution with pH=4.5, the lead ions peak current showed excellent linear relationship with the lead ion concentration in the range of 0.2~50μg/L (R2=0.995), and the minimum detection limit was 0.34μg/L. At the same time, the actual water samples were determined by nano-gold-graphene/glass carbon electrodes for lead ions, and the recovery ranges was 92.94%~101.47%, which showed that the gold-nanoparticles-graphene/glass carbon electrodes possessed significant detection performance for the actual water samples.
© The Authors, published by EDP Sciences, 2019
This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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