Abstract
A flexible electrochemical sensor was screen printed on polyethylene terephthalate. Carbon- and silver-based inks were used for metallization of the working, counter, and reference electrodes. 1,10-phenanthroline and its derivative naphtho[2,3-a]dipyrido[3,2-h: $2'$ , $3'$ -f]phenazine-5,18-dione were synthesized as sensitive layers for Hg2+ and Pb2+, respectively. Cyclic voltammetry response of the sensor resulted in reduction peaks at 0.2 and −0.6 eV for the selective detection of Hg2+ and Pb2+, respectively. An 87% and 9% change in the average peak currents were observed for the 50- $\mu \text{M}$ concentration of Pb2+ and Hg2+, respectively, against a reference signal established for deionized water. The response of the electrochemical sensor demonstrated the use of traditional printing processes and synthesized chemicals for the selective detection of heavy metal ions.
Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
