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首页> 外文期刊>International Journal of Electrochemical Science >Iodide–Selective Electrodes Based on Two New Carriers: Influence of Various Nanoparticle Materials on the Response Performance of proposed electrodes
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Iodide–Selective Electrodes Based on Two New Carriers: Influence of Various Nanoparticle Materials on the Response Performance of proposed electrodes

机译：基于两种新型载体的碘化物选择性电极：各种纳米颗粒材料对拟议电极响应性能的影响

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The influence of various nanoparticles such as oxidized multiwall carbon nanotubes (MWCNTs),silver, zinc sulfide and zinc selenide loaded on the active carbon on the response properties of newiodide carbon paste electrodes based on bis(3-phenyl-2-propenaldehydene)-1,3-propanediamine1 zinc(II) chloride, [ZnL Cl2] and bis(4-nitrobenzylidene) ethylenediamine mercury(II)bromide2 [HgL Br2] as suitable carriers are described. It was seen, for both ionophores among differentnanoparticle, the best response (wide linear range and low detection limit) was observed in thepresence of oxidized MWCNT. The effects of various parameters such as amount of ionophores,amount of additive and role and amount of nanoparticles on the response properties of proposedelectrodes were investigated. Amount of oxidized multiwall carbon nanotube (MWCNT), additives(MTOACl), ionophores and Nujol were optimized and their values are set as: carbon powder, oxidizedMWCNT: Nujol, Carrier: MTOACl (0.15 g, 12 mg, 50 mg, 27 mg, 21.2 mg) and (0.15g, 8 mg, 50 mg,1 2 1 20 mg, 10 mg ) for [ZnL Cl2] and [HgL Br2], respectively. The electrodes based on [ZnL Cl2] and2 [HgL Br2] complexes exhibits Nernstian slope of 57.3 1.2 and 59.8 0.8 mV per decade over a-6 -1 -7 -1 wide concentration range from 1.010 to 1.010 and 1.010 to 1.010 M with detection limit of.-7 .-8 8.810 and 7.510 M. They have relatively fast response times (20 s and 15 s), satisfactoryreproducibility (1.2 and 0.8) and relatively long life times (2 months). The proposed sensors showhigh selectivity toward iodide ion in comparison to other common anions, while there potentiometricresponses are independent of the solution pH in the pH of 2.51.0. The proposed electrodes especiallybased on mercury complex in the presence of oxidized MWCNT show very unique selectivity and lowdetection limits. They were used successfully as indicator electrodes in potentiometric titration anddirect determination of iodide content in drug containing compound.
机译：活性炭上负载的氧化多壁碳纳米管（MWCNTs），银，硫化锌和硒化锌等各种纳米粒子对基于双（3-苯基-2-丙烯醛）-1的新碘化物碳糊电极响应性能的影响描述了作为合适的载体的，3-丙二胺1氯化锌（II），[ZnL Cl 2]和双（4-硝基亚苄基）乙二胺汞（II）溴化物[HgL Br 2]。可以看出，对于不同纳米粒子之间的两个离子载体，在氧化的MWCNT存在下观察到了最佳响应（宽线性范围和低检测限）。研究了各种参数如离子载体的数量，添加剂的数量以及纳米粒子的作用和数量对所提出电极响应特性的影响。优化氧化多壁碳纳米管（MWCNT），添加剂（MTOACl），离子载体和Nujol的量，并将其值设置为：碳粉，氧化的MWCNT：Nujol，载体：MTOACl（0.15 g，12 mg，50 mg，27 mg， [ZnL Cl2]和[HgL Br2]分别为21.2 mg）和（0.15g，8 mg，50 mg，1 2 1 20 mg，10 mg）。基于[ZnL Cl2]和2 [HgL Br2]配合物的电极在a-6 -1 -7 -1 -1的宽浓度范围（检测范围为1.010至1.010和1.010至1.010 M）下，每十年的能斯特斜率分别为57.3 1.2和59.8 0.8 mV极限为.-7 .-8 8.810和7.510M。它们具有相对较快的响应时间（20 s和15 s），令人满意的重现性（1.2和0.8）以及较长的使用寿命（2个月）。与其他常见阴离子相比，拟议的传感器对碘离子具有较高的选择性，而在2.51.0的pH中，电位响应与溶液的pH无关。所提出的电极特别是在氧化的MWCNT存在下基于汞配合物的电极显示出非常独特的选择性和低检测限。它们已成功地用作电位滴定和直接测定含药化合物中碘化物含量的指示电极。

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