کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
10528734 | 960722 | 2005 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Planar potentiometric sensors based on Au and Ag microelectrodes and conducting polymers for flow-cell analysis
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی آنالیزی یا شیمی تجزیه
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Planar potentiometric sensors based on Au and Ag microelectrodes and conducting polymers for flow-cell analysis Planar potentiometric sensors based on Au and Ag microelectrodes and conducting polymers for flow-cell analysis](/preview/png/10528734.png)
چکیده انگلیسی
Back-side contact Au and Ag microelectrodes were used as transducers to construct planar all-solid-state electrodes suitable for flow-through analysis. The microsensors were based on plasticized PVC potassium-selective membranes containing ion-electron conducting polymer-polypyrrole doped with di(2-ethylhexyl) sulfosuccinate. The proposed technique allowed simple construction of microsensors in one step, by membrane solution casting directly on the surface of the planar metallic transducers. The performance of the microsensors based on Au and Ag transducers were determined and compared with planar sensors based on internal electrolyte immobilized in polyHEMA. The addition of the polypyrrole to the membrane composition did not influence on the selectivity, reproducibility and long-term stability of the microsensors but improved their standard potential stability in time in comparison with coated-wire type sensors. Moreover, all-solid-state microsensors based on Au transducers exhibited better signal stability than Ag based sensors.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Analytica Chimica Acta - Volume 540, Issue 1, 17 May 2005, Pages 167-172
Journal: Analytica Chimica Acta - Volume 540, Issue 1, 17 May 2005, Pages 167-172
نویسندگان
Renata ToczyÅowska, RafaÅ Pokrop, Artur Dybko, Wojciech Wróblewski,