Voltammetric sensor based on ordered mesoporous carbon for folic acid determination |
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Authors: | Haijing Yang Baoping LuBin Qi Liping Guo |
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Institution: | Faculty of Chemistry, Northeast Normal University, Changchun 130024, PR China |
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Abstract: | With ordered mesoporous carbon (OMC) as the modifier, a voltammetric sensor for folic acid (FA) was constructed on a glassy carbon electrode (GCE). Due to the good characteristics of OMC, FA exhibited an enhanced electrochemical response and lower reduction potential in the neutral solution. In addition, the experimental parameters such as pH values, accumulation time and potential were optimized. Using the differential pulse voltammetry (DPV) measurement, the peak current was found to be linear with FA concentration in the range from 5.0 × 10−10 to 1.0 × 10−7 M with a lower detection limit of 6.0 × 10−11 M (S/N = 3). Also, in real samples analysis, the as-prepared sensor successfully gives satisfying results. |
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Keywords: | Ordered mesoporous carbon Folic acid Electroanalysis Voltammetry |
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