| 钯/碳纳米纤维复合材料修饰电极同时检测邻苯二酚和对苯二酚 |
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| 引用本文： | 张海江,王春燕,黄建设,由天艳.钯/碳纳米纤维复合材料修饰电极同时检测邻苯二酚和对苯二酚[J].分析化学,2009,37(11). |
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| 作者姓名： | 张海江 王春燕 黄建设 由天艳 |
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| 作者单位： | 1. 中国科学院长春应用化学研究所,电分析化学国家重点实验室,长春,130022
2. 吉林工程技术师范学院,食品工程学院,长春,130052 |
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| 摘 要： | 利用电纺丝技术制得钯/碳纳米纤维复合材料(Pd/CNFs),并将其用于修饰玻碳电极Pd/CNF-GCE/CME.Pd/CNF-GCE/CME对邻苯二酚和对苯二酚的氧化还原反应具有较高的电催化活性,显著提高了二者电化学反应的可逆性.考察了支持电解质的酸度对邻苯二酚和对苯二酚电化学响应的影响,选用0.1 mol/L PBS(pH 8.0)作为支持电解质.用微分脉冲伏安(DPV)法对邻苯二酚和对苯二酚进行选择性检测:当混合溶液中存在50 μmol/L对苯二酚时,邻苯二酚的氧化峰电流与其浓度在1～90 μmol/L范围内呈线性关系,检出限为0.3 μmol/L(S/N=3);当存在50 μmol/L邻苯二酚时,对苯二酚的氧化峰电流与其浓度在2～100 μmol/L范围内呈线性关系,检出限为1.0 μmol/L.另外,此修饰电极具有较好的重现性和较强的抗干扰能力.将此修饰电极用于模拟水样中邻苯二酚和对苯二酚的测定,结果令人满意.
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| 关 键 词： | 电纺丝 钯/碳纳米纤维 邻苯二酚 对苯二酚 |
Simultaneous Determination of Catechol and Hydroquinone at Electrospun Palladium Nanoparticle/Carbon Nanofibers Modified Electrode |
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| ZHANG Hai-Jiang,WANG Chun-Yan,HUANG Jian-She,YOU Tian-Yan.Simultaneous Determination of Catechol and Hydroquinone at Electrospun Palladium Nanoparticle/Carbon Nanofibers Modified Electrode[J].Chinese Journal of Analytical Chemistry,2009,37(11). |
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| Authors: | ZHANG Hai-Jiang WANG Chun-Yan HUANG Jian-She YOU Tian-Yan |
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| Institution: | ZHANG Hai-Jiang1,WANG Chun-Yan2,HUANG Jian-She1,YOU Tian-Yan 1 1 ( State Key Laboratory of Electroanalytical Chemistry,Changchun Institute of Applied Chemistry,Chinese Academy of Sciences,Changchun 130022) 2 ( Institute of Food Engineering,Jilin Teacher's Institute of Engineering and Technology,Changchun 130052) |
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| Abstract: | Palladium nanoparticle/carbon nanofibers( Pd/CNFs) were prepared by electrospinning technique with subsequent thermal treatments and were employed to modify glassy carbon electrode ( Pd/CNF-GCE / CME). Pd/CNF-GCE /CME exhibited excellent electrocatalytic activities towards catechol and hydroquinone,and the reversibility of catechol and hydroquinone were significantly improved. The effects of pH value on the oxidation peak current and potential of catechol and hydroquinone were studied by differential pulse ... |
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| Keywords: | Electrospinning technique palladium nanoparticle/carbon nanofibers catechol hydroquinone simultaneous determination |
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