Potassium-Selective Membrane Sensor Based on Two Recently Synthesized Poly(oxyethylene) Derivatives
Two poly(oxyethylene) derivatives 1.10-bis(2'-benzoic acid)-1,4,7,1-tetradecane (L1) and 1,7-bis(2'-benzoic acid)-1,4,7-trioxaheptane (L2) were used as suitable ionophores for the preparation of potassium-selective PVC-membrane electrodes. The resulting electrodes based on L1 and L2 exhibi...
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Iranian Institute of Research and Development in Chemical Industries (IRDCI)-ACECR
2001-12-01
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doaj-bffd9f536b9b42709a836425d474c1ee2020-11-25T03:52:48ZengIranian Institute of Research and Development in Chemical Industries (IRDCI)-ACECRIranian Journal of Chemistry & Chemical Engineering 1021-99861021-99862001-12-0120253579970Potassium-Selective Membrane Sensor Based on Two Recently Synthesized Poly(oxyethylene) DerivativesMojtaba Shamsipur0Nahid Tavakkoli1Elham Eslami2Hashem Sharghi3Department of Chemistry, Razi University, Kermanshah, I.R. IRANDepartment of Chemistry, Shiraz University, Shiraz, I.R. IRANDepartment of Chemistry, Shiraz University, Shiraz, I.R. IRANDepartment of Chemistry, Shiraz University, Shiraz, I.R. IRANTwo poly(oxyethylene) derivatives 1.10-bis(2'-benzoic acid)-1,4,7,1-tetradecane (L1) and 1,7-bis(2'-benzoic acid)-1,4,7-trioxaheptane (L2) were used as suitable ionophores for the preparation of potassium-selective PVC-membrane electrodes. The resulting electrodes based on L1 and L2 exhibit linear responses to the activity of K+ ions within the concentration ranges of 3.1´10-5 -2.7´10-2 M and 2.0´10-5-7.3´10-2 M with the slopes of 61.8 and 62.6 V per decade, respectively. The electrodes show relatively fast response times of 25-30 s and can be used for at least 3 months without any considerable divergence in potential. The working pH range of the electrodes is 3-11. The selectivity coefficients of the electrodes for potential interfering cations including alkali, alkaline earth and transition metal ions are reported.http://www.ijcce.ac.ir/article_9970_4917513698371a5c7ab31d1b0fd83461.pdfk+ ion-selective electrodespvc membranepoly(oxyethylene)potentiometry |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Mojtaba Shamsipur Nahid Tavakkoli Elham Eslami Hashem Sharghi |
spellingShingle |
Mojtaba Shamsipur Nahid Tavakkoli Elham Eslami Hashem Sharghi Potassium-Selective Membrane Sensor Based on Two Recently Synthesized Poly(oxyethylene) Derivatives Iranian Journal of Chemistry & Chemical Engineering k+ ion-selective electrodes pvc membrane poly(oxyethylene) potentiometry |
author_facet |
Mojtaba Shamsipur Nahid Tavakkoli Elham Eslami Hashem Sharghi |
author_sort |
Mojtaba Shamsipur |
title |
Potassium-Selective Membrane Sensor Based on Two Recently Synthesized Poly(oxyethylene) Derivatives |
title_short |
Potassium-Selective Membrane Sensor Based on Two Recently Synthesized Poly(oxyethylene) Derivatives |
title_full |
Potassium-Selective Membrane Sensor Based on Two Recently Synthesized Poly(oxyethylene) Derivatives |
title_fullStr |
Potassium-Selective Membrane Sensor Based on Two Recently Synthesized Poly(oxyethylene) Derivatives |
title_full_unstemmed |
Potassium-Selective Membrane Sensor Based on Two Recently Synthesized Poly(oxyethylene) Derivatives |
title_sort |
potassium-selective membrane sensor based on two recently synthesized poly(oxyethylene) derivatives |
publisher |
Iranian Institute of Research and Development in Chemical Industries (IRDCI)-ACECR |
series |
Iranian Journal of Chemistry & Chemical Engineering |
issn |
1021-9986 1021-9986 |
publishDate |
2001-12-01 |
description |
Two poly(oxyethylene) derivatives 1.10-bis(2'-benzoic acid)-1,4,7,1-tetradecane (L1) and 1,7-bis(2'-benzoic acid)-1,4,7-trioxaheptane (L2) were used as suitable ionophores for the preparation of potassium-selective PVC-membrane electrodes. The resulting electrodes based on L1 and L2 exhibit linear responses to the activity of K+ ions within the concentration ranges of 3.1´10-5 -2.7´10-2 M and 2.0´10-5-7.3´10-2 M with the slopes of 61.8 and 62.6 V per decade, respectively. The electrodes show relatively fast response times of 25-30 s and can be used for at least 3 months without any considerable divergence in potential. The working pH range of the electrodes is 3-11. The selectivity coefficients of the electrodes for potential interfering cations including alkali, alkaline earth and transition metal ions are reported. |
topic |
k+ ion-selective electrodes pvc membrane poly(oxyethylene) potentiometry |
url |
http://www.ijcce.ac.ir/article_9970_4917513698371a5c7ab31d1b0fd83461.pdf |
work_keys_str_mv |
AT mojtabashamsipur potassiumselectivemembranesensorbasedontworecentlysynthesizedpolyoxyethylenederivatives AT nahidtavakkoli potassiumselectivemembranesensorbasedontworecentlysynthesizedpolyoxyethylenederivatives AT elhameslami potassiumselectivemembranesensorbasedontworecentlysynthesizedpolyoxyethylenederivatives AT hashemsharghi potassiumselectivemembranesensorbasedontworecentlysynthesizedpolyoxyethylenederivatives |
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