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A Nanostructure Based Electrochemical Sensor for Square Wave Voltammetric Determination of L-Cysteine in the Presence of High Concentration of Folic Acid

机译:高浓度叶酸存在下基于纳米结构的电化学传感器,用于方波伏安法测定半胱氨酸

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摘要

This study describes the development, electrochemical characterization and utilization of 8,9-dihydroxy-7-methyl-12H-benzothiazolo [2,3-b] quinazolin-12-one (DMBQ)/ZnO nanoparticles (ZnO/Nps)-carbon paste electrode (DMBQ/ZnO/NPs/CPE) as a modified sensor for the electrocatalytic determination of cysteine (Cys) in the presence of folic acid (FA). ZnO/NPs was synthesized and characterized by X-ray diffraction (XRD) method. The prepared DMBQ/ZnO/NPs/CPE was developed as a highly sensitive voltammetric sensor for determination of Cys in the presence of FA in real samples. Square wave voltammetry (SWV) of Cys exhibited linear dynamic range with a detection limit (3 sigma) of 0.05 mu mol/L.
机译:这项研究描述了8,9-二羟基-7-甲基-12H-苯并噻唑[2,3-b]喹唑啉-12-一(DMBQ)/ ZnO纳米颗粒(ZnO / Nps)-碳糊的开发,电化学表征和利用电极(DMBQ / ZnO / NPs / CPE)作为修饰传感器,用于在叶酸(FA)存在下电催化测定半胱氨酸(Cys)。合成了ZnO / NPs,并通过X射线衍射(XRD)方法对其进行了表征。制备的DMBQ / ZnO / NPs / CPE被开发为高灵敏度的伏安传感器,用于在真实样品中存在FA的情况下测定Cys。 Cys的方波伏安法(SWV)表现出线性动态范围,检出限(3 sigma)为0.05μmol / L。

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