한빛사 논문
Abstract
A.T. Ezhil Viliana, Reddicherla Umapathib, Seung-Kyu Hwangb, MinJi Leeb, Yun Suk Huhb,*, Young-Kyu Hana,*
aDepartment of Energy and Materials Engineering, Dongguk University-Seoul, Seoul 100-715, Republic of Korea
bDepartment of Biological Engineering, Inha University, Incheon 22212, Republic of Korea
*Corresponding author
Abstract
The excessive use of food additives in manufactured food products negatively affects their quality and potentially impacts human health. In the present study, a composite consisting of gold nanoparticles decorated on tungsten carbide (AuNP-WC) was successfully fabricated using a facile and cost-effective ultrasonication technique. Compared to a bare glassy carbon electrode (GCE), AuNP-GCE, and WC-GCE, the AuNP-WC-GCE demonstrated excellent sensing performance for tert-butylhydroquinone (TBHQ) when used as an electrocatalyst in 0.05 M phosphate buffer solution (PBS), with a low working potential and a high peak current. In particular, the composite was able to detect the oxidation of TBHQ within a linear concentration range of 5 to 75 nM, with an extremely low detection limit of 0.20 nM. The practicability of the sensor was also assessed in the analysis of TBHQ in real samples of soybean oil, blended oil, and red wine, with satisfactory recovery rates obtained.
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