학회 | 한국공업화학회 |
학술대회 | 2018년 봄 (05/02 ~ 05/04, 대구 엑스코(EXCO)) |
권호 | 22권 1호 |
발표분야 | 환경에너지_포스터 |
제목 | Highly sensitive electrochemical sensor for determination of ferulic acid based on the manganese dioxide nanoparticles-MWCNT nanocomposites |
초록 | We prepared on an electrochemical sensor for the detection of ferulic acid (FA) that is based on a glassy carbon electrode modified with functional multiwalled carbon nanotubes that are decorated with MnO2 nanoparticles. The new electrode shows excellent electrochemical catalytic activity towards the oxidation of ferulic acid at pH7. Cyclic voltammetry reveals a 23mV decrease in the peak-to-peak separation of the oxidation and reduction waves. Under optimized conditions, the anodic peak current at a voltage of 150 mV (vs. Ag/AgCl) is linearly related to the peak current in the 0.082–220 μM concentration range, and the limit of detection (at an SNR of 3) is 10 nM. The sensor was applied to the determination of FA in spiked human serum samples and gave satisfactory results, with recoveries ranging from 97 to 99.2 %. |
저자 | 오철우1, 강성민1, A.T. Ezhil vilian2, 한영규2, 허윤석1 |
소속 | 1인하대, 2동국대 |
키워드 | Electrochemical sensor; Ferulic acid; MWCNT |