کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1169031 | 960617 | 2008 | 8 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Covalent binding of sensor phases - a recipe for stable potentials of solid-state ion-selective sensors
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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: Covalent binding of sensor phases - a recipe for stable potentials of solid-state ion-selective sensors Covalent binding of sensor phases - a recipe for stable potentials of solid-state ion-selective sensors](/preview/png/1169031.png)
چکیده انگلیسی
In this work, a new concept of the solid-state sensors free from EMF instabilities is proposed. In order to prevent the formation of an aqueous layer underneath the ion-selective membrane, instead of improving the hydrophobicity of the monolayer, the moieties terminated with acrylate groups were incorporated within the redox-active monolayer structure. It allowed to “sew” all phases of the sensor (i.e., the transducer, the intermediate layer and the ion-selective membrane) and to obtain a stable and durable ion-selective sensor. It is shown that newly designed monolayer containing both the ferrocene- and the acrylate-terminated molecules does not affect the working parameters of the electrode, such as selectivity or the slope of the calibration curve, although the EMF drift of the sensor is significantly reduced to 0.2Â mV per day.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Analytica Chimica Acta - Volume 625, Issue 2, 12 September 2008, Pages 137-144
Journal: Analytica Chimica Acta - Volume 625, Issue 2, 12 September 2008, Pages 137-144
نویسندگان
Ewa GrygoÅowicz-Pawlak, Barbara Palys, Krzysztof Biesiada, Andrzej R. Olszyna, Elzbieta Malinowska,