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Fabrication of Nickel Tetrasulfonated Phthalocyanine Functionalized Multiwalled Carbon Nanotubes on Activated Glassy Carbon Electrode for the Detection of Dopamine |
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| Authors: | Chelladurai Karuppiah Rajkumar Devasenathipathy Shen‐Ming Chen Danial Arulraj Selvakumar Palanisamy Veerappan Mani V S Vasantha |
| Institution: | 1. National Taipei University of Technology, Taipei, Taiwan fax: +886?2270?25238;2. tel: +886?2270?17147;3. Madurai Kamaraj University, Madurai, Tamil Nadu, India fax:+91‐452‐245 8449;4. tel:+91‐452‐245?8471, ex: 108 |
| Abstract: | The nickel tetrasulfonated phthalocyanine (NiTsPc) functionalized multiwalled carbon nanotube (MWCNT) nanocomposite was prepared by a simple sonochemical method. Here, NiTsPc served as a dispersing agent for MWCNT via π? π interaction between MWCNT and NiTsPc. The activated glassy carbon electrode (AGCE) modified with MWCNT‐NiTsPc composite exhibited a good electrocatalytic ability toward dopamine and displayed a good linear dependence in the concentration range of 20 nM–1.384 mM with a sensitivity of 0.17 µA µM?1 cm?2. The detection limit is 1 nM based on the signal‐to‐noise ratio of 3. |
| Keywords: | Multiwalled carbon nanotubes Nickel tetrasulfonated phthalocyanine Activated glassy carbon modified electrode Dopamine Linear range Amperometry |