Ion-Selective Carbon Paste Electrode Based on 2-Amino-N-benzthioazolyl Benzamide (ABTB) for Determination of Copper (II) by Potentiometric Method

Journal of Physical Chemistry & Eleectrochemistry

مقاله 5، دوره 2، شماره 1، فروردین و اردیبهشت 2014، صفحه 89-96   

نوع مقاله: Research Paper

تاریخ دریافت: 20 مهر 1392،  تاریخ پذیرش: 20 مهر 1392 

چکیده

2-Amino-N-benzthioazolyl benzamide (ABTB) was synthesized, characterized and used for the
fabrication of a potentiometric sensor for Cu2+ metal ions. The electrode exhibits linear response to Cu
(II) over a wide concentration range (4.79×10 -8 – 1.85×10 -1 M) with Nernstian slope of 30 ± 1.5 mV
per decade. The electrode can be used in the pH range from 2 to 9. It has a fast response time of about
10 s and can be used for a period of four months with good reproducibility. The detection limit of this
electrode was 2.91×10 - 8 M. The proposed electrode shows a very good selectivity for Cu (II) over a
wide variety of metal ions. This chemically modified carbon paste electrode was successfully used for
the determination of Cu (II) in electronics waste sample solution.

کلیدواژه‌ها

Carbon paste electrode؛ Cu (II)؛ Potentiometric Method؛ ABTB؛ Ion-selective electrodes