Anion recognition using newly synthesized hydrogen bonding diamide receptors: PVC based sensors for carbonate

Facile synthesis of an optical sensor for CO32−and HCO3−detection

“…In spite of essential roles in various processes, the carbonate ion is toxic in large doses. The strong caustic effect carbonate/ bicarbonate to the gastro-intestinal tract may cause severe abdominal pain, vomiting, diarrhoea, collapse and even death [19]. In view of widespread occurrence of carbonate and bicarbonates in physiological, industrial and environmental samples, there exists a necessity of a durable, accurate and rapid sensor for biomedical applications, clinical and environmental analysis with potential for real sample investigation without interference from endogenous substrates [20][21][22][23][24][25][26].…”

“…In view of widespread occurrence of carbonate and bicarbonates in physiological, industrial and environmental samples, there exists a necessity of a durable, accurate and rapid sensor for biomedical applications, clinical and environmental analysis with potential for real sample investigation without interference from endogenous substrates [20][21][22][23][24][25][26]. A number of analytical methods have been developed for carbonate detection including Fourier transform infrared (FT-IR) spectroscopy [27], passive acoustic emission [28,29], gas chromatography [30], pH-ion-sensitive field-effect transistor as a sensitive element [31,32], ionselective electrodes [19,[33][34][35] and chromoionophore based optodes [36]. Alongside, the development of luminescent signalling systems utilising organic chromophores is an active area of research in photochemistry to establish fluorescent chemosensors which can be applicable to industry, diagnostic and various kinds of environmental monitoring.…”

Tripodal Cadmium Complex and Macrocyclic Ligand Based Sensors for Phosphate Ion Determination in Environmental Samples

“…In order to prepare ISEs for these ions, the membranes should contain ionophore molecules, which are able to bind specific ions. Ionophores containing hydrogen-bond donating moieties or immobilized Lewis acidic binding site can be applied for this purpose, as summarized recently [22,23]. The inherent tetrahedral structure of phosphate ion is still a challenging problem for the design of effective receptors.…”

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AbstractTripodal cadmium complex of hydrotris(3-phenyl-5-methylpyrazolyl)borate (I 1 ) and macrocyclic ligand 5,7 : 12,14 : 19,21 : 26,13,19,11,22,4,15, (I 2 ), have been synthesized and characterized by IR, 1 H NMR, Mass and elemental analysis. Spectroscopic investigations indicate high affinity of these receptors for dihydrogen phosphate ion.

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Preparation of Iodide Selective Carbon Paste Electrode with Modified Carbon Nanotubes by Potentiometric Method and Effect of CuS‐NPs on Its Response

“…Therefore,t he determination of iodide is essential in our environmental analysis [2][3][4]. Va rious analytical methods were reported for the determination of iodide,b ut reveal the most of these techniques are complicated and expensive for routine analysis.E lectrochemical detection methods,such as amperometry,b iamperometry,s tripping voltammetry and potentiometry,h ave been reported for the determination of iodide [5].A mong the various analytical available approaches for iodide ion, potentiometric based ion-selective electrode is very effective with advantages such as simplicity,l ow cost, wide range of linearity and the fast response time [6][7][8][9].I SEs have been widely used in the determination of ions in the various fields of research, such as environmental science,c linical science,d iagnos-tics,p harmaceutical science and water chemistry [10][11][12][13][14][15][16][17][18][19][20][21]. Several ion selective electrodes based on the selective interaction of transition metal complexes with iodide ion were reported [35,36].T herefore,m etal complexes such as Cu 2 + or Ag + (having sulphur and nitrogen ionospheres) exhibited high affinity for iodide ion with ion exchange mechanism.…”