Chelating ionophore based membrane sensors for copper(II) ions

Highly Selective and Sensitive Membrane Sensors for Copper(II) Ion Based on a New Benzo‐Substituted Macrocyclic Diamide 6,7,8,9,10‐Hexahydro‐2H‐1,13,4,7,10‐benzodioxatriazacyclopentadecine‐3,11(4H,12H)‐dione

“…These copper ion carriers include a thiaglutaric diamide derivative [10], small size thia crown ethers [11,12], pyridine- [13] and phenanthroline-based aza-thio crowns [14], calix [4]arens [15] Schiffs bases [16 -19], chelating ionophores [20,21], thiophosphoril-containing macrocycles [22] and macrocyclic diamides [23]. However most of these Cu(II)-selective membrane suffer interfering effects from Co 2þ , Ni 2þ , Cd 2þ , Hg 2þ and Ag þ ions as well as limited linear ranges.…”

Fluorene functionalized nanoporous SBA-15 incorporated into carbon paste electrode for trace copper determination

“…ions using FT-SBA-15 nanoporous silica gel as matrices. Experimental results Hydrotris (3-isopropyl pyrazolyl)-methane 1.0 9 10 -6 -5.0 9 10 -2 2.0 9 10 -6 29.0 10 5.5 [32] Bis(acetylacetone)propylenediimine 1.0 9 10 -5 -5.0 9 10 -1 7.8 9 10 -6 30.0 10 3.3-7.0 [33] [2-Mercapto-5-(5-nitrofuran-2-yl)-1,3,4-thiadiazole]-gold-nanoparticle 7.9 9 10 -9 -7.9 9 10 -4 4.1 9 10 -9 31.0 5 2.5-7.0 [34] Bis[acetylacetonato] Cu(II) 2.0 9 10 -6 -1.0 9 10 -1 1.6 9 10 -6 29.3 9 2.6-6.0 [35] (3,4-Dihydro-4,4,6-trimethyl-2(1H)-pyrimidine thione) 9.77 9 10 -7 -7.6 9 10 -2 7.0 9 10 -7 30.0 45 2.0 [36] Etioporphyrin I dihydrobromide 1.28 9 10 -6 -1.28 9 10 -2 8.99 9 10 -7 30.2 5 4.5-8.5 [37] FT-SBA-15 1.0 9 10 -6 -1.0 9 10 -2 5.0 9 10 -7 29.6 44 3.9-6.6 This work indicated that the developed electrode exhibited a wide working concentration range (1.0 9 10 -6 -1.0 9 10 -2 -mol L -1 , low detection limit (5.0 9 10 -7 mol L -1 ) and fast response time (44 s). In addition, the detection limit, lifetime, selectivity and reproducibility of the developed electrode were acceptable.…”

“…A comparative study of the response characteristics of the previously reported papers on copper ion selective electrodes is shown in Table 3 [33][34][35][36][37][38]. The comparison indicates that the proposed electrode is superior to these reported Cu 2?…”

Used gold nano-particles as an on/off switch for response of a potentiometric sensor to Al(III) or Cu(II) metal ions

“…Tables 5 and 6 compared the performance characteristics of the proposed sensors with those of the best previously reported Cu 2+ [25,[38][39][40][41][42] and Al 3+ [43][44][45][46][47] sensors. From the results in these tables, it can be concluded that, in many cases, the performances of the proposed electrodes show superior behavior if compared with previously reported electrodes.…”