Nanocomposites consisting of nanoporous platinum-silicon and graphene for electrochemical determination of bisphenol A

2020 ◽  
Vol 187 (4) ◽  
Author(s):  
Shufei Zhang ◽  
Yufan Shi ◽  
Jiamin Wang ◽  
Lei Xiao ◽  
Xiaofang Yang ◽  
...  
Sensors ◽  
2019 ◽  
Vol 19 (4) ◽  
pp. 941 ◽  
Author(s):  
Rahadian Zainul ◽  
Nurashikin Abd Azis ◽  
Illyas Md Isa ◽  
Norhayati Hashim ◽  
Mohamad Syahrizal Ahmad ◽  
...  

This paper presents the application of zinc/aluminium-layered double hydroxide-quinclorac (Zn/Al-LDH-QC) as a modifier of multiwalled carbon nanotubes (MWCNT) paste electrode for the determination of bisphenol A (BPA). The Zn/Al-LDH-QC/MWCNT morphology was examined by a transmission electron microscope and a scanning electron microscope. Electrochemical impedance spectroscopy was utilized to investigate the electrode interfacial properties. The electrochemical responses of the modified electrode towards BPA were thoroughly evaluated by using square-wave voltammetry technique. The electrode demonstrated three linear plots of BPA concentrations from 3.0 × 10−8–7.0 × 10−7 M (R2 = 0.9876), 1.0 × 10−6–1.0 × 10−5 M (R2 = 0.9836) and 3.0 × 10−5–3.0 × 10−4 M (R2 = 0.9827) with a limit of detection of 4.4 × 10−9 M. The electrode also demonstrated good reproducibility and stability up to one month. The presence of several metal ions and organic did not affect the electrochemical response of BPA. The electrode is also applicable for BPA determination in baby bottle and mineral water samples with a range of recovery between 98.22% and 101.02%.


2019 ◽  
Vol 52 (16) ◽  
pp. 2583-2606 ◽  
Author(s):  
Livia Alexandra Gugoasa ◽  
Raluca-Ioana Stefan-van Staden ◽  
Jacobus Frederick van Staden ◽  
Maria Coroș ◽  
Stela Pruneanu

2018 ◽  
Vol 30 (9) ◽  
pp. 1946-1955 ◽  
Author(s):  
Felipe Ianesko ◽  
Camila Alves de Lima ◽  
Cristiane Antoniazzi ◽  
Edson Roberto Santana ◽  
Jamille Valéria Piovesan ◽  
...  

2013 ◽  
Vol 663 ◽  
pp. 297-302 ◽  
Author(s):  
Shu Ai Yang ◽  
Xue Jiang ◽  
Yang Jun Dong ◽  
Ning Ning Zhu ◽  
Yuan Feng Wang

Multi-walled carbon nanotubes (MWNTs) combining with ferroferric oxide (Fe3O4) nanoparticles were used for electrochemical determination of bisphenol A (BPA). Fe3O4 nanoparticles with an average size of about 12 nm were synthesized. It was found that the Fe3O4-MWNTs nanocomposites-modified electrode could remarkably enhance the oxidation current of BPA. Chronoamperometry studies reveal that the amperometric response is rapid, stable, and offers a linear dependence over a range of BPA concentrations from 0.1 to 4 M. The proposed method can be used for evaluation of BPA in water samples. The electrochemical properties of the Fe3O4-MWNT nanocomposites are reasonably envisaged to be promising for providing a nanostructured platform in the development of electrochemical sensors or biosensors.


2013 ◽  
Vol 34 (4) ◽  
pp. 1065-1069 ◽  
Author(s):  
Byung Kun Kim ◽  
Ji Yeon Kim ◽  
Dong-Hwan Kim ◽  
Han Nim Choi ◽  
Won-Yong Lee

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