分析化学2009，Vol.37Issue(11)：1622-1626,5.
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
Simultaneous Determination of Catechol and Hydroquinone at Electrospun Palladium Nanoparticle/Carbon Nanofibers Modified Electrode
摘要
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 voltamme-try(DPV),and 0. 1 mol/L PBS(pH 8.0) was selected as the supporting electrolyte. Under the optimized conditions,the oxidation peak current of catechol was linearly with the concentration of catechol in the range of 1-90μmol/L in the presence of 50 μmol/L hydroquinone with the detection limit of 0.3μmol/L(S/V =3) and the oxidation peak current of hydroquinone was linearly with the concentration of hydroquinone in the range of 2 - 100μmol/L in the presence of 50 μmol/L catechol with the detection limit of 1. 0μmol/L. Furthermore,the modified electrode exhibited good reproducibility and selectivity. The modified electrode has been used for the determination of catechol and hydroquinone in imitative water samples with satisfactory results.关键词
电纺丝/钯/碳纳米纤维/邻苯二酚/对苯二酚Key words
Electrospinning technique/palladium nanoparticle/carbon nanofibers/catechol/hydroquinone/simultaneous determination分类
化学化工引用本文复制引用
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):1622-1626,5.基金项目
本文系国家自然科学基金(Nos.20605020,20875085)资助项目 （Nos.20605020,20875085）
