2,3-Diphenylquinoxaline-4′,4″-dioxytriethylene glycol as a sensing and selective material for construction of strontium-PVC membrane sensor

Fabrication of a PVC membrane samarium(III) sensor based on N,N′,N″-tris(4-pyridyl)trimesic amide as a selectophore

“…The complexation study in acetonitrile solution [35][36][37][38]40] was initially carried out to find the selectivity behavior of TPTA in complexation. The study showed that a selective complexation between Sm(III) and TPTA in comparison with other alkali, alkaline earth, transition metals and other lanthanide cations.…”

“…Then A Pyrex tube (5-mm o.d.) was dipped into the oily mixture for~10 s, to achieve a transparent membrane of 0.3 mm in thickness at the tip [28][29][30][31][32][33][34][35][36][37][38][39][40][41]. The tube were then kept at room temperature for 24 h and filled with an internal solution (1.0 × 10 −3 mol L −1 SmCl 3 ), and finally conditioned for 36 h by soaking in a 1.0 × 10 −2 mol L −1 SmCl 3 solution.…”

Dysprosium selective potentiometric membrane sensor

“…Dynamic response time is an important factor of any ion-selective electrode [36][37][38]. In this study, the practical response time of the proposed sensor was recorded by changing the Dy(III) concentration in a series of solutions from 1.0 × 10 −6 to 1.0 × 10 −2 mol L −1 .…”

A Fast Response Strontium Ion‐Selective Electrode Prepared by Sol‐Gel Membrane Technique

“…Since than, two more description of Sr 2þ -selective electrode were appeared in the chemical media [12,13]. According to many advantages of the sol-gel derived materials, we decided to take advantage of our highly selective ionophore 6-(4-nitrophenyl)-2-phenyl-4,4-dipropyl-3,5-diaza-bicyclo[3,1,0] hex-2-ene (NPDBH) for incorporation in a stable host matrix.…”