Potentiometric Studies of 1,4-bis[o-(quinoline-2-carboxamidophenyl)]-1,4-dithiobutane as a Sensing Material for Tb(III) Ions

Hassan Ali Zamani; Mina Ranjkesh; Mohammad Reza Abedi; Soraia Meghdadi

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Potentiometric Studies of 1,4-bis[o-(quinoline-2-carboxamidophenyl)]-1,4-dithiobutane as a Sensing Material for Tb(III) Ions

机译：1,4-双[邻-（喹啉-2-羧酰胺基苯基）]-1,4-二硫代丁烷作为Tb（III）离子的传感材料的电位分析

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A new Tb ion-selective PVC membrane sensor has been developed, based on 1,4-bis[o-(quinoline-2- carboxamidophenyl)]-1,4-dithiobutane (QCD), as a suitable sensing material. The sensor performance-1 includes a Nernstian slope of 20.1 0.4 mV decade across a wide concentration range between-6 -2 -1 -7 -1 1.010 and 1.010 mol L and a detection limit of 6.410 mol L in the pH range of 3.2 .0. Thesensor possesses the advantages of short conditioning time, fast response time (~ 5 s) and, especially,great selectivity towards transition and heavy metal and some mono, di and trivalent cations. Therecommended sensor was effectively used as an indicator electrode in the potentiometric titration ofTb ions with EDTA. The membrane sensor was also applied to the Tb ions determination in somewater samples.

机译：基于1,4-双[o-（喹啉-2-羧酰胺基苯基）]-1,4-二硫代丁烷（QCD），开发了一种新型的Tb离子选择性PVC膜传感器，作为一种合适的传感材料。传感器性能-1在6 -2 -1 -7 -1 1.010和1.010 mol L之间的宽浓度范围内包括20.1 0.4 mV十进制的能斯登斜率，在3.2的pH范围内的检测极限为6.410 molL。 0。该传感器具有以下优点：调节时间短，响应时间快（〜5 s），尤其是对过渡金属和重金属以及一些单价，二价和三价阳离子具有较高的选择性。推荐的传感器有效地用作了用EDTA滴定Tb离子的指示电极。膜传感器还用于某些水样中的Tb离子测定。

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《International Journal of Electrochemical Science》 |2014年第11期|共10页
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Hassan Ali Zamani; Mina Ranjkesh; Mohammad Reza Abedi; Soraia Meghdadi;
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Potentiometric Studies of 1,4-bis[o-(quinoline-2-carboxamidophenyl)]-1,4-dithiobutane as a Sensing Material for Tb(III) Ions

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