INFLUENCE OF ZnCl2 CONCENTRATION ON THE SELECTIVITY OF A Zn(NCS)4²--SELECTIVE ELECTRODES AND ITS APPLICATION FOR DETERMINATION SCN- IONS IN INDUSTRIAL SOLUTIONS
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-)−...
Guardado en:
| Autores principales: | , |
|---|---|
| Lenguaje: | English |
| Publicado: |
Sociedad Chilena de Química
2017
|
| Materias: | |
| Acceso en línea: | http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-97072017000200011 |
| Etiquetas: |
Agregar Etiqueta
Sin Etiquetas, Sea el primero en etiquetar este registro!
|
| id |
oai:scielo:S0717-97072017000200011 |
|---|---|
| record_format |
dspace |
| spelling |
oai:scielo:S0717-970720170002000112017-06-30INFLUENCE OF ZnCl2 CONCENTRATION ON THE SELECTIVITY OF A Zn(NCS)4²--SELECTIVE ELECTRODES AND ITS APPLICATION FOR DETERMINATION SCN- IONS IN INDUSTRIAL SOLUTIONSMATVEICHUK,YU.VRAKHMAN'KO,E.M potentiometry thiocyanate ions tetrathiocyanozincate-selective electrode quaternary ammonium salts 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 CKO4- ions and more than 4.5 orders of magnitude in the presence of interfering NO3- ions.info:eu-repo/semantics/openAccessSociedad Chilena de QuímicaJournal of the Chilean Chemical Society v.62 n.2 20172017-06-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-97072017000200011en10.4067/S0717-97072017000200011 |
| institution |
Scielo Chile |
| collection |
Scielo Chile |
| language |
English |
| topic |
potentiometry thiocyanate ions tetrathiocyanozincate-selective electrode quaternary ammonium salts |
| spellingShingle |
potentiometry thiocyanate ions tetrathiocyanozincate-selective electrode quaternary ammonium salts MATVEICHUK,YU.V RAKHMAN'KO,E.M INFLUENCE OF ZnCl2 CONCENTRATION ON THE SELECTIVITY OF A Zn(NCS)4²--SELECTIVE ELECTRODES AND ITS APPLICATION FOR DETERMINATION SCN- IONS IN INDUSTRIAL SOLUTIONS |
| description |
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 CKO4- ions and more than 4.5 orders of magnitude in the presence of interfering NO3- ions. |
| author |
MATVEICHUK,YU.V RAKHMAN'KO,E.M |
| author_facet |
MATVEICHUK,YU.V RAKHMAN'KO,E.M |
| author_sort |
MATVEICHUK,YU.V |
| 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 |
| title_short |
INFLUENCE OF ZnCl2 CONCENTRATION ON THE SELECTIVITY OF A Zn(NCS)4²--SELECTIVE ELECTRODES AND ITS APPLICATION FOR DETERMINATION SCN- IONS IN INDUSTRIAL SOLUTIONS |
| title_full |
INFLUENCE OF ZnCl2 CONCENTRATION ON THE SELECTIVITY OF A Zn(NCS)4²--SELECTIVE ELECTRODES AND ITS APPLICATION FOR DETERMINATION SCN- IONS IN INDUSTRIAL SOLUTIONS |
| title_fullStr |
INFLUENCE OF ZnCl2 CONCENTRATION ON THE SELECTIVITY OF A Zn(NCS)4²--SELECTIVE ELECTRODES AND ITS APPLICATION FOR DETERMINATION SCN- IONS IN INDUSTRIAL SOLUTIONS |
| title_full_unstemmed |
INFLUENCE OF ZnCl2 CONCENTRATION ON THE SELECTIVITY OF A Zn(NCS)4²--SELECTIVE ELECTRODES AND ITS APPLICATION FOR DETERMINATION SCN- IONS IN INDUSTRIAL SOLUTIONS |
| title_sort |
influence of zncl2 concentration on the selectivity of a zn(ncs)4²--selective electrodes and its application for determination scn- ions in industrial solutions |
| publisher |
Sociedad Chilena de Química |
| publishDate |
2017 |
| url |
http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-97072017000200011 |
| work_keys_str_mv |
AT matveichukyuv influenceofzncl2concentrationontheselectivityofaznncs42selectiveelectrodesanditsapplicationfordeterminationscnionsinindustrialsolutions AT rakhmankoem influenceofzncl2concentrationontheselectivityofaznncs42selectiveelectrodesanditsapplicationfordeterminationscnionsinindustrialsolutions |
| _version_ |
1714200910754742272 |