High selective potentiometric sensor for determination of nanomolar con-centration of Cu(II) using a polymeric electrode modified by a graphene/7,7,8,8-tetracyanoquinodimethane nanoparticles

Single-Piece Solid Contact Cu2+-Selective Electrodes Based on a Synthesized Macrocyclic Calix[4]arene Derivative as a Neutral Carrier Ionophore

“…To explore the novelty of this work, comparison of the proposed sensors with other solid-contact Cu 2+ -ISEs previously reported is also given in Table 5. The table clearly indicated good enhancement in the behavior of the proposed copper electrode in terms of the detection limit and linear range [33,35,36,37,41,42,43,44], slope [34,44] and selectivity [33,34,42].…”

“…One is based on the use of 1-ethyl-3-methyl imidazolium chloride as an ionic liquid doped with the ionophore [33]. Nano-structured carbon materials are also used as solid contact materials-based solid-contact Cu 2+ -ISE such as carboxylic multi-walled carbon nanotubes [34], multi-walled carbon nanotubes (MWCNT) [35], single-walled carbon nanotubes (MWCNT) [36] and graphen (GR) and grapheme oxide (GO) [37]. Single-piece solid-contact Cu 2+ -ISEs have different advantages such as ease of miniaturization, simplicity, stability and disposability.…”

Low-cost potentiometric paper-based analytical device based on newly synthesized macrocyclic pyrido-pentapeptide derivatives as novel ionophores for point-of-care copper(ii) determination

“…[33][34][35] All of these merits make potentiometric approaches the most favorable approach for Cu 2+ assessment. Although there are many solid electrodes for copper measurement in the literature, [36][37][38][39][40][41][42][43][44][45] they have been applied in environmental analyses. There are no reported sensors for copper determination based on the paper as a solid support for point-of-care purposes.…”

Spectrophotometric Determination of Copper(II) using 2,2[O-Tolidine-4,4-bis azo]bis[4,5-diphenyl imidazole](MBBAI)

“…Copper is likewise a fundamental component for hemoglobin amalgamation, rectify nerve working, and bone improvement, Copper insufficiency causes ischemic coronary illness, iron deficiency, and abnormal wool growth (3). Many techniques are used to determine copper including atomic absorption spectrometry (4)(5)(6), potentiometry (7)(8)(9)(10)(11), inductive coupled plasma-emission spectrometry (12), inductive coupled plasma-mass spectrometry (13), and flow injection catalytic photometric method (14).…”