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首页> 外文期刊>RSC Advances >Fabrication of a mercury(II) ion selective electrode based on poly-o-toluidine-zirconium phosphoborate
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Fabrication of a mercury(II) ion selective electrode based on poly-o-toluidine-zirconium phosphoborate

机译：基于聚甲苯氨基 - 磷酸锆的汞（II）离子选择性电极的制备

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摘要

This work covers various aspects of a new ion selective electrode for mercury(II) ions, designed by incorporation of poly-o-toluidine (PTD) into zirconium phosphoborate (ZrPB) ion exchanger. The designed sensor showed pretty good detection ability towards Hg2+ ions in comparison to alkali, alkaline earth, transition and even some heavy metal ions. The crystallinity and morphology of the synthesized composite has been explored using X-ray diffraction, scanning electron microscopy and transmission electron microscopy. A linear near Nernstian response for Hg(II) ions with a slope of 28.0 mV per decade over a wide concentration range (1 x 10(-7) M to 1 x 10(-1) M) has been observed. The limit of detection is 7.08 x 10(-8) M (0.014 ppm). Moreover, the electrode showed significantly the same results in the pH range 2.5-10.0, a fast response time of 6 s and a life-time of at least 6 months without any divergence in potential. It has been successfully applied as an indicator electrode in potentiometric titrations, and quantitative estimation of Hg(II) ions in tap water, CFL unit waste water and thermometer unit waste.
机译：该工作涵盖了用于汞（II）离子的新型离子选择电极的各个方面，其通过将聚甲苯胺（PTD）掺入磷酸锆（ZRPB）离子交换剂中设计。与碱，碱土，过渡甚至一些重金属离子相比，设计的传感器朝向HG2 +离子的检测能力非常好。使用X射线衍射，扫描电子显微镜和透射电子显微镜探索合成复合材料的结晶度和形态。已经观察到在宽浓度范围内（1×10（-7）m至1×10（-1）m）的斜率为28.0mV的Hg（II）离子的线性接近Nernstian响应。检测限为7.08×10（-8）m（0.014 ppm）。此外，电极显示在pH范围2.5-10.0中显着相同，快速响应时间为6 s和至少6个月的寿命，没有任何潜力。它已成功应用于电位滴定中的指示电极，以及自来水，CFL单元废水和温度计余量中的HG（II）离子的定量估计。

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  • 来源
    《RSC Advances》 |2016年第4期|共9页
  • 作者

    Kaushal Sandeep; Badru Rahul; Kumar Sanjeev; Mittal Susheel K.; Singh Pritpal;

  • 作者单位

    Sri Guru Granth Sahib World Univ Dept Chem Fatehgarh Sahib Pb India;

    Sri Guru Granth Sahib World Univ Dept Chem Fatehgarh Sahib Pb India;

    Sri Guru Granth Sahib World Univ Dept Phys Fatehgarh Sahib Pb India;

    Thapar Univ Sch Chem &

    Biochem Patiala 147004 Punjab India;

    Sri Guru Granth Sahib World Univ Dept Chem Fatehgarh Sahib Pb India;

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  • 正文语种 eng
  • 中图分类 化学;
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