학회 | 한국공업화학회 |
학술대회 | 2022년 봄 (05/11 ~ 05/13, 제주국제컨벤션센터(ICC JEJU)) |
권호 | 26권 1호 |
발표분야 | 포스터-생물공학 |
제목 | Ultrasensitive nonenzymatic sensor for point-of-caredetection of carbendazim in food samples based on Manganese-doped zinc sulfidemicrospheres |
초록 | Inthis study, a composite containing Mn-doped ZnS was prepared with a facilereflux approach. Compared with conventional ZnS electrodes and GCEs, thehierarchical Mn-doped ZnS microspheres with abundant edge/defect sites improvethe interface charge transfer capacity, thereby resulting in a lower Rct. TheMn-doped ZnS-GCE displays excellent electrocatalytic sensing ability for CBZ in0.05 M PBS at a higher anodic current and low sensing potential compared tothose of other ZnS electrodes and GCEs. The square wave voltammetry (SWV)results confirm that the Mn-doped ZnS-GCE has a more comprehensive linearworking range (5–120 nM) for CBZ, and the measured ultralow detection limit forCBZ is 0.03 nM. Interestingly, we investigated the real-time applicability ofthe Mn-doped ZnS-GCE for the precise identification of spiked CBZ in lemon washwater samples, tomato sauce, and orange juice samples with satisfactoryrecovery. |
저자 | 박의창, 허윤석, A.T. Ezhil Vilian, 한영규 |
소속 | 인하대 |
키워드 | Modified electrode; Electrochemical sensor; Square wave voltammetry; Nanocomposite; Carbendazim |