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Poly(quercetin)-bismuth nanowires as a new modifier for simultaneous voltammetric determination of dihydroxybenzene isomers and nitrite

机译：聚（槲皮素） - 纳米线作为一种用于同时伏安法测定二羟基苯异构体和亚硝酸盐的新改性剂

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摘要

Dihydroxybenzene isomers and nitrite, NO2-, are present in the environment as highly toxic compounds and cause human cancer. In this study, for the first time poly(quercetin) (PQ) was synthesized from the reaction between quercetin (Q) and hydroquinone (HQ) as a linker. Bismuth nanowires (BNWs) were synthesized using a solvothermal technique and then the BNWs and PQ were used for preparation of a novel modified graphite paste electrode (GPE/PQ-BNWs) for simultaneous determination of dihydroxybenzene isomers; HQ, catechol (CC), resorcinol (RS) in the presence of NO2-. The product was characterized using X-ray diffraction, field emission scanning electron microscopy and Fourier transform infrared spectroscopy. The electrochemical response characteristics of the modified GPE toward mix HQ, CC, RS and NO2- were investigated by cyclic voltammetry, differential pulse voltammetry and electrochemical impedance spectroscopy. Under the optimum conditions, detection limits of 0.12, 0.2, 0.82 and 4.5 mu M were obtained for HQ, CC, RS and NO2-, respectively. Moreover, the GPE/PQ-BNWs were applied to determine HQ, CC, RS and NO2- in water samples with satisfactory results.
机译：在环境中存在二羟基苯异构体和亚硝酸盐，NO 2-作为高度毒性化合物并引起人类癌症。在本研究中，对于第一次，从槲皮素（Q）和氢醌（HQ）之间的反应合成Poly（槲皮素）（PQ）作为接头。使用溶剂热技术合成铋纳米线（BNW），然后使用BNWS和PQ制备新型改性石墨糊电极（GPE / PQ-BNW），用于同时测定二羟基苯异构体; HQ，儿茶酚（CC），间苯二酚（RS）在NO2-中存在。使用X射线衍射，现场发射扫描电子显微镜和傅里叶变换红外光谱学特征。通过循环伏安法，差分脉冲伏安法和电化学阻抗光谱研究改性GPE朝向混合HQ，CC，RS和NO2的电化学响应特性。在最佳条件下，分别获得0.12,0.2,0.82和4.5μm的检测限为HQ，CC，RS和NO2-。此外，施用GPE / PQ-BNWS以具有令人满意的结果，以确定HQ，CC，RS和NO2-在水样中。

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  • 来源
    《RSC Advances》 |2018年第3期|共9页
  • 作者

    Tohidinia M.; Farsadrooh M.; Bahmanzadeh S.; Sabbaghi N.; Noroozifar M.;

  • 作者单位

    Univ Sistan &

    Baluchestan Dept Chem POB 98135-674 Zahedan Iran;

    Univ Sistan &

    Baluchestan Dept Chem POB 98135-674 Zahedan Iran;

    Univ Sistan &

    Baluchestan Dept Chem POB 98135-674 Zahedan Iran;

    Univ Sistan &

    Baluchestan Dept Chem POB 98135-674 Zahedan Iran;

    Univ Sistan &

    Baluchestan Dept Chem POB 98135-674 Zahedan Iran;

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  • 正文语种 eng
  • 中图分类 化学;
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