A novel approach for the design of a highly selective sulfate-ion-selective electrode.
A hydroxyl Schiff base molecule was synthesized from tetraethylenetetramine and 4-nitrosalicylaldehyde and explored as an ionophore with ionic liquid, cation excluder in PVC membranes showing remarkable sulfate selectivity; the optimal recognition site was predicted by density function theory (DFT) simulation.
Sathyapalan
Amarchand
A
Department of Biological and Irrigation Engineering, Utah State University, Logan, Utah, 84322-4105, USA. a.sathyapalan@usu.edu
Zhou
Anhong
A
Kar
Tapas
T
Zhou
Feng
F
Su
Haibin
H
D001547:Benzaldehydes / Q000737:chemistry; D005029:Ethylenediamines / Q000737:chemistry; D017736:Ion-Selective Electrodes; D008968:Molecular Conformation; D015394:Molecular Structure; D009596:Nitrophenols / Q000138:chemical synthesis* / Q000737:chemistry; D013431:Sulfates / Q000032:analysis*; D017186:Titrimetry / Q000295:instrumentation / Q000379:methods*
C535191:2,2-((1E,11E)-2,5,8,11-tetraazadodeca-1,11-diene-1,12-diyl)bis(4-nitrophenol); C535192:4-nitrosalicylaldehyde; D001547:Benzaldehydes; D005029:Ethylenediamines; D009596:Nitrophenols; D013431:Sulfates; C535193:tetraethylenetetramine