화학공학소재연구정보센터
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
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