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Antibacterial, DFT and molecular docking studies of metformin complex as active material for the fabrication of copper (II) selective potentiometric sensor
Author(s) -
Frag Eman Yossri,
Mohamed Marwa E.,
Mohamed Gehad G.,
Fahim Elham M.
Publication year - 2019
Publication title -
applied organometallic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.53
H-Index - 71
eISSN - 1099-0739
pISSN - 0268-2605
DOI - 10.1002/aoc.4986
Subject(s) - potentiometric titration , chemistry , copper , electrode , potentiometric sensor , detection limit , selectivity , inorganic chemistry , ion selective electrode , metal ions in aqueous solution , carbon paste electrode , analytical chemistry (journal) , metal , nuclear chemistry , chromatography , electrochemistry , catalysis , organic chemistry , cyclic voltammetry
The prepared and characterized metformin ‐copper (II) complex was used as elecroactive material for modification of a new sensitive and selective modified carbon paste electrode (MCPE) for the potentiometric determination of copper (II) in water samples. The performance characteristics of MCPE were carried out. The electrode showed perfect potentiometric response for Cu (II) over concentration range of 1.0 × 10 −6 – 5.0 × 10 −2 mol L −1 with a detection limit of 1.0 × 10 −6 mol L −1 with divalent slope value 30.8 ± 0.92 mV decade −1 over the pH range of 2–6 and exhibits fast response time of 9 s. Also, this electrode exhibited good selectivity towards Cu (II) ions with respect to other metal ions. The obtained results using the proposed electrode were in a good agreement with those obtained using the inductively coupled plasma (ICP) method.