A new pertechnetate-selective electrode based on supramolecular polymer composition

Авторы: Kopytin A.V., Afanasiev A.V., German K.E., Zhukova T.V., Peretrukhin V.F.
Сборник: Proceedings and selected lectures of the 10th International Symposium on Technetium and Rhenium – Science and Utilization, October 3-6, 2018 - Moscow – Russia
Том: 10
Тезисы
Год издания: 2018
Место издания: Publishing house Granica Moscow
Первая страница: 126
Последняя страница: 129
Аннотация: Basic electroanalytical parameters have been determined for an ion-selective electrode (ISE) with a supramolecular polymer membrane containing polyvinyl chloride (PVC), a plasticizer onitrophenyloctyl ether, ionophor tetradecyammonium teraphertehtetate (PTTDF) and a lipophilic dopant tetraphenylborate tetradecylmonium. The electrode function of these ISEs was shown to be linear in the concentration range (TcO4)- 2⋅10-7÷ 10-2 mol / l; the slopes of the electrode function at 20 ° C are 57.5 ± 1.5 mV / p TcO4 - . The potentiometric coefficients of selectivity to various anions are determined. It was established that a change in the pH of the analyzed solution from 0.5 to 13 does not affect the potential. The possibility of using the ISE to determine Tc in the products of reprocessing spent nuclear fuel (SNF) is shown.
Добавил в систему: Герман Константин Эдуардович

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