Energy-Dispersive and X-Ray Photoelectron Spectroscopy and Electron Microscopy of New Quininium-Plastic Membrane Electrodes
New quininium (Qn) plastic membrane electrodes of the conventional type were constructed and characterized. They are based on incorporation of Qn‐reineckate (QnRn) ion‐pair, Qn‐phosphotungstate (Qn3‐PT), or Qn‐phosphomolybdate (Qn3PM) ion associate into a poly(vinyl chloride) membrane. The electrode...
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| Veröffentlicht in: | Annali di chimica 2007-10, Vol.97 (10), p.1117-1127 |
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| creator | Shoukry, Adel F. Maraffie, Hayat M. Al-Shatti, Laila A. |
| description | New quininium (Qn) plastic membrane electrodes of the conventional type were constructed and characterized. They are based on incorporation of Qn‐reineckate (QnRn) ion‐pair, Qn‐phosphotungstate (Qn3‐PT), or Qn‐phosphomolybdate (Qn3PM) ion associate into a poly(vinyl chloride) membrane. The electrodes are selective for Qn and have been successfully used for the determination of Qn2SO4 in pharmaceutical tablets. Nevertheless, they showed, as almost all other ion‐selective electrodes, limited life times. Energy dispersive‐ (EDS) and X‐ray photoelectron spectroscopy (XPS), as well as electron microscopy were applied to investigate the cause of this limitation in the life times of the electrodes. The results indicated that the electrodes lose their activity after prolonged soaking as a result of leaching of the ion exchanger from the membranes into the test solution in addition to deformation at the surface of the expired electrode. |
| doi_str_mv | 10.1002/adic.200790095 |
| format | Article |
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They are based on incorporation of Qn‐reineckate (QnRn) ion‐pair, Qn‐phosphotungstate (Qn3‐PT), or Qn‐phosphomolybdate (Qn3PM) ion associate into a poly(vinyl chloride) membrane. The electrodes are selective for Qn and have been successfully used for the determination of Qn2SO4 in pharmaceutical tablets. Nevertheless, they showed, as almost all other ion‐selective electrodes, limited life times. Energy dispersive‐ (EDS) and X‐ray photoelectron spectroscopy (XPS), as well as electron microscopy were applied to investigate the cause of this limitation in the life times of the electrodes. The results indicated that the electrodes lose their activity after prolonged soaking as a result of leaching of the ion exchanger from the membranes into the test solution in addition to deformation at the surface of the expired electrode.</description><identifier>ISSN: 0003-4592</identifier><identifier>EISSN: 1612-8877</identifier><identifier>DOI: 10.1002/adic.200790095</identifier><identifier>PMID: 18154005</identifier><language>eng</language><publisher>Weinheim: WILEY-VCH Verlag</publisher><subject>Cations ; Electrodes ; Equipment Design ; Hydrogen-Ion Concentration ; Ion-Selective Electrodes ; Plastics ; Polyvinyl Chloride ; Potentiometry ; Spectrum Analysis ; X-Ray Diffraction ; X-Rays</subject><ispartof>Annali di chimica, 2007-10, Vol.97 (10), p.1117-1127</ispartof><rights>Electronic Copyright © 2007 WILEY‐VCH Verlag GmbH & Co. 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They are based on incorporation of Qn‐reineckate (QnRn) ion‐pair, Qn‐phosphotungstate (Qn3‐PT), or Qn‐phosphomolybdate (Qn3PM) ion associate into a poly(vinyl chloride) membrane. The electrodes are selective for Qn and have been successfully used for the determination of Qn2SO4 in pharmaceutical tablets. Nevertheless, they showed, as almost all other ion‐selective electrodes, limited life times. Energy dispersive‐ (EDS) and X‐ray photoelectron spectroscopy (XPS), as well as electron microscopy were applied to investigate the cause of this limitation in the life times of the electrodes. The results indicated that the electrodes lose their activity after prolonged soaking as a result of leaching of the ion exchanger from the membranes into the test solution in addition to deformation at the surface of the expired electrode.</description><subject>Cations</subject><subject>Electrodes</subject><subject>Equipment Design</subject><subject>Hydrogen-Ion Concentration</subject><subject>Ion-Selective Electrodes</subject><subject>Plastics</subject><subject>Polyvinyl Chloride</subject><subject>Potentiometry</subject><subject>Spectrum Analysis</subject><subject>X-Ray Diffraction</subject><subject>X-Rays</subject><issn>0003-4592</issn><issn>1612-8877</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2007</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><recordid>eNqFkM1vEzEQxS0EoqFw5Yj2xM1hbO-u18eSpqFSWgIFwc1y7Fkw7Bf2LmXFP8-mSQo35MNYM7_3NPMIec5gzgD4K-O8nXMAqQBU9oDMWM44LQopH5IZAAiaZoqfkCcxfpt4KQv-mJywgmUpQDYjv5cNhi8jPfexwxD9T0xM45LP9L0Zk83Xtm-xQtuHtkluurtPtG033kHL4-TK22O_LZNrvE3eDb6Z3lDTTWVi721yhfU2mAaPKofxKXlUmiris0M9JR8vlh8Wb-j67epycbamVkx7UskdUwow5S7jubGWF5yVDoQsc84ZGJdyhVNfcLQpFkyAVcrxVGCWl9tUnJKXe98utD8GjL2ufbRYVdM67RB1rqAQTBYTON-Du3NiwFJ3wdcmjJqB3sWtd3Hr-7gnwYuD87Ct0f3FD_lOgNoDt77C8T92-uz8cvGvOd1rfezx173WhO86l0Jm-tP1Sq83-Wt5s-L6QvwBW1Kc3g</recordid><startdate>20071001</startdate><enddate>20071001</enddate><creator>Shoukry, Adel F.</creator><creator>Maraffie, Hayat M.</creator><creator>Al-Shatti, Laila A.</creator><general>WILEY-VCH Verlag</general><general>WILEY‐VCH Verlag</general><scope>BSCLL</scope><scope>CGR</scope><scope>CUY</scope><scope>CVF</scope><scope>ECM</scope><scope>EIF</scope><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7X8</scope></search><sort><creationdate>20071001</creationdate><title>Energy-Dispersive and X-Ray Photoelectron Spectroscopy and Electron Microscopy of New Quininium-Plastic Membrane Electrodes</title><author>Shoukry, Adel F. ; Maraffie, Hayat M. ; Al-Shatti, Laila A.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c3815-72d1990e42d526acc2821fd037f62210ad429eacc32ec4e8130c99d243e56fb43</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2007</creationdate><topic>Cations</topic><topic>Electrodes</topic><topic>Equipment Design</topic><topic>Hydrogen-Ion Concentration</topic><topic>Ion-Selective Electrodes</topic><topic>Plastics</topic><topic>Polyvinyl Chloride</topic><topic>Potentiometry</topic><topic>Spectrum Analysis</topic><topic>X-Ray Diffraction</topic><topic>X-Rays</topic><toplevel>online_resources</toplevel><creatorcontrib>Shoukry, Adel F.</creatorcontrib><creatorcontrib>Maraffie, Hayat M.</creatorcontrib><creatorcontrib>Al-Shatti, Laila A.</creatorcontrib><collection>Istex</collection><collection>Medline</collection><collection>MEDLINE</collection><collection>MEDLINE (Ovid)</collection><collection>MEDLINE</collection><collection>MEDLINE</collection><collection>PubMed</collection><collection>CrossRef</collection><collection>MEDLINE - Academic</collection><jtitle>Annali di chimica</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Shoukry, Adel F.</au><au>Maraffie, Hayat M.</au><au>Al-Shatti, Laila A.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Energy-Dispersive and X-Ray Photoelectron Spectroscopy and Electron Microscopy of New Quininium-Plastic Membrane Electrodes</atitle><jtitle>Annali di chimica</jtitle><addtitle>Annali di Chimica</addtitle><date>2007-10-01</date><risdate>2007</risdate><volume>97</volume><issue>10</issue><spage>1117</spage><epage>1127</epage><pages>1117-1127</pages><issn>0003-4592</issn><eissn>1612-8877</eissn><abstract>New quininium (Qn) plastic membrane electrodes of the conventional type were constructed and characterized. They are based on incorporation of Qn‐reineckate (QnRn) ion‐pair, Qn‐phosphotungstate (Qn3‐PT), or Qn‐phosphomolybdate (Qn3PM) ion associate into a poly(vinyl chloride) membrane. The electrodes are selective for Qn and have been successfully used for the determination of Qn2SO4 in pharmaceutical tablets. Nevertheless, they showed, as almost all other ion‐selective electrodes, limited life times. Energy dispersive‐ (EDS) and X‐ray photoelectron spectroscopy (XPS), as well as electron microscopy were applied to investigate the cause of this limitation in the life times of the electrodes. The results indicated that the electrodes lose their activity after prolonged soaking as a result of leaching of the ion exchanger from the membranes into the test solution in addition to deformation at the surface of the expired electrode.</abstract><cop>Weinheim</cop><pub>WILEY-VCH Verlag</pub><pmid>18154005</pmid><doi>10.1002/adic.200790095</doi><tpages>11</tpages></addata></record> |
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| language | eng |
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| subjects | Cations Electrodes Equipment Design Hydrogen-Ion Concentration Ion-Selective Electrodes Plastics Polyvinyl Chloride Potentiometry Spectrum Analysis X-Ray Diffraction X-Rays |
| title | Energy-Dispersive and X-Ray Photoelectron Spectroscopy and Electron Microscopy of New Quininium-Plastic Membrane Electrodes |
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