| Nafion-石墨烯-纳米金修饰电极测定尿酸 |
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| 引用本文： | 田欣雨,樊雪梅. Nafion-石墨烯-纳米金修饰电极测定尿酸[J]. 分析仪器, 2022, 0(1): 5-8 |
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| 作者姓名： | 田欣雨 樊雪梅 |
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| 作者单位： | 商洛学院化学工程与现代材料学院 |
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| 基金项目： | 陕西省科技厅项目(2018JM2040);商洛学院科技创新团队项目(18SCX003)项目资助。 |
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| 摘 要： | 将Nafion和石墨烯及纳米金复合后修饰在玻碳电极上制成修饰电极,用于尿酸电化学行为的研究。在pH 5.8的磷酸盐缓冲溶液中,该修饰电极对尿酸具有良好的电催化作用,尿酸浓度在2.0×10-7 ～2.0×10-5 mol/L范围内与其氧化峰电流呈较好的线性关系,相关系数为0.9843,检出限为1.0×10-8 mol/L。方法用于实际样品的测定,加标回收率为96.8～103.2%,RSD为2.7～3.3%。
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| 关 键 词： | 修饰电极 尿酸 石墨烯 纳米金 |
Determination of uric acid with Nafion-graphene-nanogold modified electrode. |
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| Tian Xinyu,Fan Xuemei. Determination of uric acid with Nafion-graphene-nanogold modified electrode.[J]. Analytical Instrumentation, 2022, 0(1): 5-8 |
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| Authors: | Tian Xinyu Fan Xuemei |
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| Affiliation: | (College of Chemical Engineering and Modern Materials,Shangluo University,Shangluo 726000,China) |
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| Abstract: | Nafion,graphene and gold nanoparticles were composited and modified on glassy carbon electrode to make a modified electrode,which was used in the study of the electrochemical behavior of uric acid.In the phosphate buffer solution of pH 5.8,the modified electrode had a good electrocatalytic effect on uric acid.The oxidation peak current had a good linear relationship with the concentration of uric acid in the range of 2.0×10-7 mol/L-2.0×10-5 mol/L.The linear correlation coefficient was 0.9843,and the detection limit was 1.0×10-8 mol/L.The recoveries were 96.8%-103.2%and the RSDs were 2.7%-3.3%. |
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| Keywords: | Modified electrode Uric acid Graphene Gold nanoparticle |
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