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Kia, M., Aghaie, H., Arvand, M., Zare, K., Aghaie, M.. (1385). Chromium (III) ion selective electrode based on di(benzylamino)glyoxime. , 3(2), 43-48.
M. Kia; H. Aghaie; M. Arvand; K. Zare; M. Aghaie. "Chromium (III) ion selective electrode based on di(benzylamino)glyoxime". , 3, 2, 1385, 43-48.
Kia, M., Aghaie, H., Arvand, M., Zare, K., Aghaie, M.. (1385). 'Chromium (III) ion selective electrode based on di(benzylamino)glyoxime', , 3(2), pp. 43-48.
Kia, M., Aghaie, H., Arvand, M., Zare, K., Aghaie, M.. Chromium (III) ion selective electrode based on di(benzylamino)glyoxime. , 1385; 3(2): 43-48.

Chromium (III) ion selective electrode based on di(benzylamino)glyoxime

Journal of Physical & Theoretical Chemistry
مقاله 6، دوره 3، شماره 2، آبان 2006، صفحه 43-48  XML اصل مقاله (240.75 K)
نوع مقاله: Research Paper
نویسندگان
M. Kia* ؛ H. Aghaie* ؛ M. Arvand* ؛ K. Zare* ؛ M. Aghaie*
Not-mentioned
چکیده
A new poly(vinylchloride) membrane sensor for Cr3+ ions based on di (benzylamino)glyoxime as
an ionophore was prepared. The electrode has a linear dynamic range 1×10-6-1×10-1 mol l-1,with a
Nernstian slope of 20.3 ± 0.5 mV per decade and a detection limit of 2×10-7. It has a fast response
time of <15 s and can be used for at least 3 months without any considerable divergence in
potential. The proposed electrode revealed good sensitivity for Cr(III) over a wide variety of metal
ions and could be used in a pH range of 2-5.5. The proposed sensor was used for the determination
of Cr3+ ions in real samples such as tea leaves, coffee and cacao powder by direct potentiometry.
کلیدواژه‌ها
Ion-selective electrode؛ Chromium(III)؛ Di(benzylamino)glyoxime؛ Poly(vinyl chloride) membrane
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