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INFLUENCE OF ZNCL2 CONCENTRATION ON THE SELECTIVITY OF A ZN(NCS)4 2–-SELECTIVE ELECTRODES AND ITS APPLICATION FOR DETERMINATION SCN− IONS IN INDUSTRIAL SOLUTIONS

dc.creatorMatveichuk, Yu V.
dc.creatorRakhman’ko, E. M.
dc.date2017-06-16
dc.date.accessioned2019-11-13T15:11:35Z
dc.date.available2019-11-13T15:11:35Z
dc.identifierhttp://www.jcchems.com/index.php/JCCHEMS/article/view/190
dc.identifier.urihttps://revistaschilenas.uchile.cl/handle/2250/112598
dc.descriptionThe influence of the background concentration of ZnCl2 on the selectivity of Zn(NCS)42–−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 presenceof interfering NO3 − ions.en-US
dc.formatapplication/pdf
dc.languageeng
dc.publisherSociedad Chilena de Químicaen-US
dc.relationhttp://www.jcchems.com/index.php/JCCHEMS/article/view/190/152
dc.rightsCopyright (c) 2017 Yu V. Matveichuk, E. M. Rakhman’koen-US
dc.rightshttps://creativecommons.org/licenses/by-nc-sa/4.0en-US
dc.sourceJournal of the Chilean Chemical Society; Vol 62 No 2 (2017): Journal of the Chilean Chemical Societyen-US
dc.source0717-9707
dc.source0717-9324
dc.subjectPotentiometryen-US
dc.subjectThiocyanate ionsen-US
dc.subjectTetrathiocyanozincate−selective electrodeen-US
dc.subjectQuaternary ammonium saltsen-US
dc.titleINFLUENCE OF ZNCL2 CONCENTRATION ON THE SELECTIVITY OF A ZN(NCS)4 2–-SELECTIVE ELECTRODES AND ITS APPLICATION FOR DETERMINATION SCN− IONS IN INDUSTRIAL SOLUTIONSen-US
dc.typeinfo:eu-repo/semantics/article
dc.typeinfo:eu-repo/semantics/publishedVersion


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