|Title:||Sonochemical driven simple preparation of nitrogen-doped carbon quantum dots/SnO <inf>2</inf> nanocomposite: A novel electrocatalyst for sensitive voltammetric determination of riboflavin||Authors:||Karkuzhali, Rajendran
Chen, Shen Ming
|Keywords:||Nitrogen-doped carbon quantum dots | Riboflavin | SnO 2 | Sonochemical preparation | Voltammetric sensor||Issue Date:||15-Feb-2019||Source:||Sensors and Actuators, B: Chemical||Abstract:||
© 2018 Elsevier B.V. We report a simple preparation of novel nanocomposite for the sensitive determination of riboflavin (RF) in real samples. Nitrogen-doped carbon quantum dots/SnO 2 (N-CQD/SnO 2 ) nanocomposite was prepared using sonochemical approach and applied as a voltammetric sensor for the sensitive determination of RF for the first time. The crystallographic phase, functional groups, surface analysis, and elemental distribution were examined using XRD, FT-IR, HR-TEM and EDS spectroscopic techniques respectively. This N-CQD/SnO 2 nanocomposite-modified electrode shows a fast and sensitive electrochemical response to RF sensing with a good sensitivity (2.496 μA μM −1 cm -2 ), wide linear range (0.05–306 μM), low detection limit (8 nM) and excellent anti-interference ability. Furthermore, the developed sensor was investigated in commercial riboflavin tablets and milk powder and obtained results are quite satisfactory.
|Appears in Collections:||政治學系|
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