Symmetrical Derivative of Anthrone as a Novel Receptor for Mercury Ions: Enhanced Performance of Modified Screen-Printed Electrode
Karamjeet Kaur,
Susheel K. Mittal,
Ashok Kumar SK,
Ashwani Kumar,
Subodh Kumar,
Jonathan P. Metters,
Craig E. Banks
Affiliations
Karamjeet Kaur
School of Chemistry & Biochemistry, Thapar Institute of Engineering & Technology, Patiala 147001, India
Susheel K. Mittal
School of Chemistry & Biochemistry, Thapar Institute of Engineering & Technology, Patiala 147001, India
Ashok Kumar SK
School of Advanced Sciences, VIT University, Vellore 632014, India
Ashwani Kumar
Department of Chemistry, GND University, Amritsar 143005, India
Subodh Kumar
Department of Chemistry, GND University, Amritsar 143005, India
Jonathan P. Metters
Faculty of Science and Engineering, School of Chemistry and the Environment Division of Chemistry and Environmental Science, Manchester Metropolitan University, John Dalton Building, Chester St. Manchester M1 5GD, UK
Craig E. Banks
Faculty of Science and Engineering, School of Chemistry and the Environment Division of Chemistry and Environmental Science, Manchester Metropolitan University, John Dalton Building, Chester St. Manchester M1 5GD, UK
Voltammetric sensor using a symmetrical derivative of anthrone3 (1,7-diamino-3,9-dibutyl benzo[1,2,3-de:4,5,6-d’e’]diquinoline-2,8(3H,9H)-dione) (SPE-A) has been developed as a probe for Hg(II) ions. Performance of the probe as screen-printed electrode modified with the receptor (SPE-A) has been compared with anthrone3 in solution phase, using 1:1 water-acetonitrile solvent system. Anthrone3 displayed an electrochemically quasi-reversible nature in voltammograms with both the systems and is presented as a novel disposable voltammetric sensor for mercury ions. Upon interaction with cations, both the electrode systems showed sensitivity towards Hg2+ ions with a lower detection limit of 0.61 µM. The magnitude of the voltammetric current with the SPE-A exhibited three times the current obtained with a bare glassy carbon electrode (GC). Kinetic performance of the SPE-A electrode is better than the GC electrode. The morphological studies indicate reusability of the electrodes.
