کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1243404 | 969659 | 2008 | 8 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Enhanced sensitivity for Cu(II) by a salicylidine-functionalized polysiloxane carbon paste electrode
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موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی آنالیزی یا شیمی تجزیه
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Enhanced sensitivity for Cu(II) by a salicylidine-functionalized polysiloxane carbon paste electrode Enhanced sensitivity for Cu(II) by a salicylidine-functionalized polysiloxane carbon paste electrode](/preview/png/1243404.png)
چکیده انگلیسی
A new approach for decreasing the detection limit for a copper(II) ion-selective electrode (ISE) is presented. The ISE is designed using salicylidine-functionalized polysiloxane in carbon paste. This work describes the attempts to develop the electrode and measurements of its characteristics. The new type of renewable three-dimensional chemically modified electrode could be used in a pH range of 2.3-5.4, and its detection limit is 2.7 Ã 10â8 mol Lâ1 (1.2 μg Lâ1). This sensor exhibits a good Nernstian slope of 29.4 ± 0.5 mV/decade in a wide linear concentration range of 2.3 Ã 10â7 to 1.0 Ã 10â3 mol Lâ1 of Cu(II). It has a short response time (â¼8 s) and noticeably high selectivity over other Cu(II) selective electrodes. Finally, it was satisfactorily used as an indicator electrode in complexometric titration with EDTA and determination of copper(II) in miscellaneous samples such as urine and various water samples.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Talanta - Volume 76, Issue 4, 15 August 2008, Pages 941-948
Journal: Talanta - Volume 76, Issue 4, 15 August 2008, Pages 941-948
نویسندگان
Hazem M. Abu-Shawish, Salman M. Saadeh, Ahmad R. Hussien,