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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Main Authors: Mojtaba Shamsipur, Nahid Tavakkoli, Elham Eslami, Hashem Sharghi
Format: Article
Language:English
Published: Iranian Institute of Research and Development in Chemical Industries (IRDCI)-ACECR 2001-12-01
Series:Iranian Journal of Chemistry & Chemical Engineering
Subjects:
Online Access:http://www.ijcce.ac.ir/article_9970_4917513698371a5c7ab31d1b0fd83461.pdf
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spelling 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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