| 铂微粒修饰电极伏安法测定亚硫酸根 |
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| 引用本文： | 郝玉翠.铂微粒修饰电极伏安法测定亚硫酸根[J].广东化工,2014(13):279-280. |
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| 作者姓名： | 郝玉翠 |
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| 作者单位： | [1]唐山学院环境与化学工程系,河北唐山063000; [2]北京工业大学环境与能源工程学院,北京100022 |
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| 摘 要： | 采用电化学沉积法制备了铂微粒修饰玻碳电极(Pt/GCE)。通过伏安法研究了亚硫酸根在该电极上的电化学行为,并优化了实验参数,在此基础上建立了一种用微分脉冲伏安法直接测定亚硫酸根的方法。在pH为3的磷酸盐缓冲溶液(PBS)中,亚硫酸根的氧化峰电流与其浓度在1.0×10-5~1.0×10-3 mol/L的范围内呈良好的线性关系(r=0.9919),检测限为5.0×10-6 mol/L。
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| 关 键 词： | 铂微粒 修饰电极 测定 亚硫酸根 |
Voltammetric Determination of Sulfite Using Platinum Particle Modified Electrodes |
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| Hao Yucui.Voltammetric Determination of Sulfite Using Platinum Particle Modified Electrodes[J].Guangdong Chemical Industry,2014(13):279-280. |
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| Authors: | Hao Yucui |
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| Affiliation: | Hao Yucui (1. Dept. of Environmental and Chemical Engineering, Tangshan College, Tangshan 063000： 2. College of Environmental and Energy Engineering, Beijing University of Technology, Beijing 100022, China) |
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| Abstract: | Platinum particle modified glassy carbon electrodes （Pt/GCE） were prepared by electrochemical deposion. The electrochemical behaviors of sulfite on Pt/GCE were studied by voltammetry. The experimental parameters were optimized, and a differential pulse voltammetric method for determining sulfite was developed. The oxidation peak current of sulfite is proportional to the concentration of sulfite over the range of 1.0× 10^-5～ 1.0× 10^-3 mol.L^-1 with the detection limit of 5.0× 10^-6 mol·L^-1 in Phosphate Buffer Solution（PBS）（r=0.9919）. |
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| Keywords: | platinum particles modified electrodes determination sulfite |
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