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https://elib.bsu.by/handle/123456789/258171| Title: | Influence of ZnCl2 concentration on the selectivity of a Zn(NCS)42--selective electrodes and its application for determination SCN- ions in industrial solutions |
| Authors: | Matveichuk, Y.V. Rakhman'ko, E.M. |
| Keywords: | ЭБ БГУ::ЕСТЕСТВЕННЫЕ И ТОЧНЫЕ НАУКИ::Химия |
| Issue Date: | 2017 |
| Publisher: | Sociedad Chilena de Quimica |
| Citation: | J Chilean Chem Soc 2017;62(2):3478-3482. |
| Abstract: | The influence of the background concentration of ZnCl2 on the selectivity of Zn(NCS)4 2--SE based on QAS to SCN- is studied. The introduction of ZnCl2 into a solution fixes zinc released from the membrane in the form of thiocyanate complex. A high selectivity of the Zn(NCS)4 2--SE to SCN- ions is due to the formation of better extractable complexes between zinc and SCN- compared to acidocomplexes of competitive anions. An introduction of 5.0 M ZnCl2 into a solution increases selectivity to SCN- ions by 5 orders of magnitude in the presence of interfering ClO4- ions and more than 4.5 orders of magnitude in the presence of interfering NO3- ions. |
| URI: | https://elib.bsu.by/handle/123456789/258171 |
| DOI: | 10.4067/S0717-97072017000200011 |
| Scopus: | 85027038412 |
| Appears in Collections: | Статьи химического факультета |
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