caa a22 4500 463219570 CHVBK 20180405153208.0 cr unu---uuuuu 170326e20070301xx s 000 0 eng 10.1134/S106193480703015X doi (NATIONALLICENCE)springer-10.1134/S106193480703015X Synthesis of a charge-transfer complex of (1,3-diphenyldihydro-1H-imidazole)-4,5-dione dioxide with iodide and its application to the development of a highly selective and sensitive triiodide PVC-membrane electrode [Elektronische Daten] [M. Ganjali, P. Norouzi, S. Shirvani-Arani, A. Kakanezhadifard] In this paper, a novel membrane triiodide sensor based on a charge-transfer complex of (1,3-diphenyldihydro-1H-imidazole)-4,5-dionedioxime with iodine (CTCI) as a membrane carrier is introduced. The best performance was obtained with a membrane containing 30% polyvinylchloride (PVC), 63% dibutylphthalate (DBP), 5% CTCI, and 2% hexadecyltrimethylammonium bromide (HTAB). The electrode shows a Nernstian behavior (slope of 58.2 ± 0.3) over a very wide triiodide ion concentration range (5.0 × 10−8−1.0 × 10−2 M), and has a low detection limit (4.0 × 10−8 M). The potentiometric response of the sensor is independent of pH of the solution in the pH range 3.0-9.0. The proposed sensor has a very low response time (<12 s) and a good selectivity relative to a wide variety of common inorganic and organic anions, including iodide, bromide, chloride, nitrate, sulfate, thiocyanate, monohydrogen phosphate, and acetate. In fact, the selectivity behavior of the proposed triiodide ion-selective electrode shows great improvements compared to the previously reported electrodes for triiodide ion. The proposed membrane sensor can be used for at least 6 months without any divergence in its potentials. The electrode was successfully applied as an indicator electrode in the titration of triiodide with thiosulfate ion. Pleiades Publishing, Ltd., 2007 Ganjali M. Endocrine and Metabolism Research Center, Tehran University of Medical Sciences, Tehran, Iran aut Norouzi P. Endocrine and Metabolism Research Center, Tehran University of Medical Sciences, Tehran, Iran aut Shirvani-Arani S. Endocrine and Metabolism Research Center, Tehran University of Medical Sciences, Tehran, Iran aut Kakanezhadifard A. Departments of Chemistry, Lorestan University, Khoram-Abad, Iran aut Journal of Analytical Chemistry Nauka/Interperiodica 62/3(2007-03-01), 279-284 1061-9348 62:3<279 2007 62 10809 https://doi.org/10.1134/S106193480703015X text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1134/S106193480703015X text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Ganjali M. Endocrine and Metabolism Research Center, Tehran University of Medical Sciences, Tehran, Iran aut NATIONALLICENCE 700 1- Norouzi P. Endocrine and Metabolism Research Center, Tehran University of Medical Sciences, Tehran, Iran aut NATIONALLICENCE 700 1- Shirvani-Arani S. Endocrine and Metabolism Research Center, Tehran University of Medical Sciences, Tehran, Iran aut NATIONALLICENCE 700 1- Kakanezhadifard A. Departments of Chemistry, Lorestan University, Khoram-Abad, Iran aut NATIONALLICENCE 773 0- Journal of Analytical Chemistry Nauka/Interperiodica 62/3(2007-03-01), 279-284 1061-9348 62:3<279 2007 62 10809 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer