Disclaimer: This video is hosted on the third-party server and uploaded by other users. MovieTaRaRumPum is non-profit website and only goal is to do the best for online movie streaming. We does not store or save movie, film, television shows in our server, they are provided by external hosting partners.A new electrochemical sensor based on functionalized graphene sheets for the selective and sensitive detection of ascorbic acid.
Herein, we report on a new electrochemical sensor for ascorbic acid (AA) detection based on a modified glassy carbon electrode (GCE) by electrochemical grafting of functionalized graphene sheets (FGS). The FGS was obtained by the hydrothermal treatment of graphene oxide (GO) resulting in more defects in the FGS. The electrochemical and spectroscopic properties of the FGS-modified GCE (FGS-GCE) as an electrochemical sensor for AA detection were investigated. The voltammetric results revealed that the FGS-GCE has good electrochemical catalytic activity toward electrochemical reduction of AA at an extremely low limit of detection (0.6 μM, S/N = 3). Additionally, the analytical performance of the FGS-GCE as an electrochemical sensor for AA detection was investigated. The results showed that the FGS-GCE had a low CV and a wide linear response range (0.1-100 μM) with a low detection limit (0.6 μM, S/N = 3). Finally, the applicability of the prepared FGS-GCE was investigated for the selective and sensitive detection of AA in human urine samples.Jpn. Pat. Appln. KOKAI Publication No. 2004-302913 (Patent Document 1) discloses an electronic control device having an abnormality detecting function of detecting abnormality of some component or each of a plurality of components based on a first control signal and a second control signal outputted from each component of the components of the electronic control device. The electronic control device has a function of identifying a faulty component based on the abnormality detected.
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