کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
189501 459680 2011 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Study of a gold electrode modified by trans-[Ru(NH3)4(Ist)SO4]+ to produce an electrochemical sensor for nitric oxide
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی مهندسی شیمی (عمومی)
پیش نمایش صفحه اول مقاله
Study of a gold electrode modified by trans-[Ru(NH3)4(Ist)SO4]+ to produce an electrochemical sensor for nitric oxide
چکیده انگلیسی

The modification of a gold electrode surface by electropolymerization of trans-[Ru(NH3)4(Ist)SO4]+ to produce an electrochemical sensor for nitric oxide was investigated. The influence of dopamine, serotonin and nitrite as interferents for NO detection was also examined using square-wave voltammetry (SWV). The characterization of the modified electrode was carried out by cyclic voltammetry, electrochemical quartz crystal microbalance (EQCM) and SERS techniques. The gold electrode was successfully modified by the trans-[Ru(NH3)4(Ist)SO4]+ complex ion using cyclic voltammetry. The experiments show that a monolayer of the film is achieved after ten voltammetric cycles, that NO in solution can coordinate to the metal present in the layer, that dopamine, serotonin and nitrite are interferents for the detection of NO, and that the response for the nitrite is much less significant than the responses for dopamine and serotonin. The proposed modified electrode has the potential to be applied as a sensor for NO.


► The modification of a gold electrode surface by electropolymerization of trans-[Ru(NH3)4(Ist)SO4]+ to produce an electrochemical sensor for nitric oxide.
► NO in solution coordinate to the metal present in the layer.
► Dopamine, serotonin and nitrite are interferents for the detection of NO.
► The proposed modified electrode has the potential to be applied as a sensor for NO.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Electrochimica Acta - Volume 56, Issue 16, 30 June 2011, Pages 5686–5692
نویسندگان
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