By a News Reporter-Staff News Editor at Life Science Weekly -- Investigators discuss new findings in Essential Amino Acids. According to news reporting originating in Tehran, Iran, by NewsRx journalists, research stated, "The present study describes the electrochemical characteristics of an electrodeposited oxadiazole derivative on multi-walled carbon nanotubes glassy carbon electrode (OMWCNT-GCE) and its role as highly sensitive electrochemical sensor for the electrocatalytic oxidation of dopamine (DA). The surface charge transfer rate constant (k(s)) and the charge transfer coefficient (alpha) for the electron transfer between GCE and electrodeposited oxadiazole were calculated."
The news reporters obtained a quote from the research from Shahid-Beheshti University, "OMWCNT-GCE exhibited suitable electrocatalytic properties for DA oxidation in a phosphate buffer (pH 7.0) solution. The modified electrode exhibited low limit of detection (0.12 mu mol L-1) for DA. In differential pulse voltammetry (DPV) measurements, OMWCNT-GCE could separate the oxidation peak potentials of DA, acetaminophen (AC) e tryptophan (Trp) present in the same solution, while the bare GCE gave two broad responses."
According to the news reporters, the research concluded: "The analytical performance of this sensor was evaluated to determine DA and AC in real samples."
For more information on this research see: Developing a Sensor for the Simultaneous Determination of Dopamine, Acetaminophen and Tryptophan in Pharmaceutical Samples Using a Multi-Walled Carbon Nanotube and Oxadiazole Modified Glassy Carbon Electrode. Journal of the Brazilian Chemical Society, 2013;24(11):1846-1856. Journal of the Brazilian Chemical Society can be contacted at: Soc Brasileira Quimica, Caixa Postal 26037, 05599-970 Sao Paulo, Brazil (see also Essential Amino Acids).
Our news correspondents report that additional information may be obtained by contacting N. Nasirizadeh, Shahid Beheshti Univ, Fac Sci, Dept. of Chem, Tehran, Iran. Additional authors for this research include Z. Shekari, H.R. Zare, S.A.Y. Ardakani and H. Ahmar.
Keywords for this news article include: Iran, Asia, Tehran, Chemistry, Fullerenes, Tryptophan, Acetanilides, Acetaminophen, Nanotechnology, Electrochemical, Aromatic Amino Acids, Emerging Technologies, Essential Amino Acids, Multiwalled Carbon Nanotube
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