Electrode modification based on "click electrochemistry" between terminal-alkynyl substituted cobalt phthalocyanine and 4-azidoaniline
By ipek, Yeliz; Dinçer, Hatice & Koca, Atif
Published in Sensors and Actuators B: Chemical
NULL
2014
Abstract
A new electrochemical sensor electrode was constructed with a new electrode modification technique, "click electrochemistry" (CEC) based on a functional cobalt phthalocyanine. In this newly constructed modified electrode (GCE/PANI-N3/TA-CoPc (CEC)), a terminal-alkynyl (TA) substituted cobalt phthalocyanine (CoPc-TA) was electrochemically bonded to the azido end of electro-polymerized 4-azidoaniline (PANI-N3), which was electropolymerized on the GCE electrochemically previously. GCE/PANI-N3/TA-CoPc (CEC) electrode was characterized with voltammetric, electrochemical impedance spectroscopy (EIS), UV–vis spectroscopy, and scanning electron microscopy (SEM) techniques. GCE/PANI-N3/TA-CoPc electrode gave three redox couples assigned to the CoPc and PANI in nonaqueous and aqueous electrolyte systems, which is a desired factor for the application of a modified electrode in various electrochemical applications such as electrocatalytic and electrosensing fields. Pesticide sensing responses of GCE/PANI-N3/TA-CoPc (CEC) electrode were tested with SWV method for usability as an electrochemical pesticide sensor for eserine. Basic sensor parameters, calibration lines, and detection limits (LOD) of GCE/PANI-N3/TA-CoPc (CEC) electrode were derived from SWV responses of the electrode. Amperometric sensing analyses of SVW responses of the electrode give a linear range between 1.56 X 10-7 and 2.45 X 10-6 mol dm-3 eserine with a sensitivity of 1.15 A dm3 mol-3 and LOD of 1.75 X 10-7 mol dm-3.
Microsoft is Ending Support for Windows 7
Microsoft will discontinue support for Windows 7 on January 14, 2020 which means Gamry will also be discontinuing support for Windows 7. If you are upgrading to Windows 10, like many companies and institutions, you need to be running Version 7 of our s oftware . Please note that only USB and Ethernet-based instruments can run in Version 7. Eligible users can download the latest version of our software through our online Client Portal .
If you haven't already registered your instrument, you can do so through the Client Portal .
Please email Technical Support if you have any questions regarding this transition. Please be sure to include your instrument model and serial number when contacting us.