Response of an Iridium Oxide pH-Sensor in Nonaqueous Solutions. Comparison with Other pH-Sensors
The response of an iridium oxide (IrO2) pH-sensor (nonaqueous version of METOX, TOA Electronics Ltd.) was studied in various dipolar aprotic solvents. From the potential measurements in picric acid-picrate solutions, it was confirmed to respond in a Nernstian way to the pH in all the solvents studie...
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| Veröffentlicht in: | Analytical Sciences 1996/12/10, Vol.12(6), pp.905-909 |
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| container_title | Analytical Sciences |
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| creator | IZUTSU, Kosuke YAMAMOTO, Hiroki |
| description | The response of an iridium oxide (IrO2) pH-sensor (nonaqueous version of METOX, TOA Electronics Ltd.) was studied in various dipolar aprotic solvents. From the potential measurements in picric acid-picrate solutions, it was confirmed to respond in a Nernstian way to the pH in all the solvents studied. The response speed of the IrO2 pH-sensor was compared with that of the glass electrode as well as those of the Si3N4- and Ta2O5-type pH-ISFETs, carrying out acid-base titrations at various speeds of titrant addition. The response speed of the IrO2 pH-sensor was much higher than that of the glass electrode, though it was somewhat lower than those of the pH-ISFETs. The IrO2 pH-sensor responded in a wide pH range, gave reproducible results, needed no pretreatment, and was durable over a year. It is promising for pH measurements in various nonaqueous solutions free from redox systems. |
| doi_str_mv | 10.2116/analsci.12.905 |
| format | Article |
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The response speed of the IrO2 pH-sensor was much higher than that of the glass electrode, though it was somewhat lower than those of the pH-ISFETs. The IrO2 pH-sensor responded in a wide pH range, gave reproducible results, needed no pretreatment, and was durable over a year. It is promising for pH measurements in various nonaqueous solutions free from redox systems.</description><identifier>ISSN: 0910-6340</identifier><identifier>EISSN: 1348-2246</identifier><identifier>DOI: 10.2116/analsci.12.905</identifier><identifier>CODEN: ANSCEN</identifier><language>eng</language><publisher>Tokyo: The Japan Society for Analytical Chemistry</publisher><subject>Analytical chemistry ; Chemistry ; Exact sciences and technology ; General, instrumentation ; glass electrode ; Iridium oxide pH-sensor ; nonaqueous solvent ; pH of nonaqueous solutions ; pH-ISFET ; potentiometry</subject><ispartof>Analytical Sciences, 1996/12/10, Vol.12(6), pp.905-909</ispartof><rights>The Japan Society for Analytical Chemistry</rights><rights>1997 INIST-CNRS</rights><rights>Copyright Japan Science and Technology Agency 1996</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><cites>FETCH-LOGICAL-c379t-dfffcfaea0be01f551a7e45e151de1a4e371260f1f15767a0afc16b0b2f135ec3</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,777,781,1877,27905,27906</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=2547964$$DView record in Pascal Francis$$Hfree_for_read</backlink></links><search><creatorcontrib>IZUTSU, Kosuke</creatorcontrib><creatorcontrib>YAMAMOTO, Hiroki</creatorcontrib><title>Response of an Iridium Oxide pH-Sensor in Nonaqueous Solutions. 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It is promising for pH measurements in various nonaqueous solutions free from redox systems.</description><subject>Analytical chemistry</subject><subject>Chemistry</subject><subject>Exact sciences and technology</subject><subject>General, instrumentation</subject><subject>glass electrode</subject><subject>Iridium oxide pH-sensor</subject><subject>nonaqueous solvent</subject><subject>pH of nonaqueous solutions</subject><subject>pH-ISFET</subject><subject>potentiometry</subject><issn>0910-6340</issn><issn>1348-2246</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>1996</creationdate><recordtype>article</recordtype><recordid>eNpFkM1vEzEQxS1UJNLClbMlet3F47V3s0cU9SNSRSQKZzNxxsRRYi_2rij_PY6ShsvMYX7vzdNj7COIWgK0nzHgPltfg6x7od-wGTRqXkmp2is2Ez2Iqm2UeMeuc94JAXIu5Yz9_EZ5iCETj45j4MvkN3468NWL3xAfHqtnCjkm7gP_GgP-nihOmT_H_TT6Iqv5Ih4GTD7HwP_4cctX45bSf2F-z966kos-nPcN-3F_933xWD2tHpaLL0-Vbbp-rDbOOeuQUKxJgNMasCOlCTRsCFBR04FshQMHums7FOgstGuxlg4aTba5YZ9OvkOKJWUezS5O6ViJAaXmGvq57ApVnyibYs6JnBmSP2D6a0CYY4vm3KIBaUqLRXB7tsVsce8SBuvzRSW16vpWFezhhO3yiL_ocsc0erunV9cSQh-d29MoDy6E3WIyFJp_PYCOAw</recordid><startdate>19961201</startdate><enddate>19961201</enddate><creator>IZUTSU, Kosuke</creator><creator>YAMAMOTO, Hiroki</creator><general>The Japan Society for Analytical Chemistry</general><general>Japan Society for Analytical Chemistry</general><general>Japan Science and Technology Agency</general><scope>IQODW</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7QF</scope><scope>7QO</scope><scope>7QQ</scope><scope>7SE</scope><scope>7SR</scope><scope>7U5</scope><scope>8BQ</scope><scope>8FD</scope><scope>FR3</scope><scope>H8G</scope><scope>JG9</scope><scope>L7M</scope><scope>P64</scope></search><sort><creationdate>19961201</creationdate><title>Response of an Iridium Oxide pH-Sensor in Nonaqueous Solutions. 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Comparison with Other pH-Sensors</atitle><jtitle>Analytical Sciences</jtitle><date>1996-12-01</date><risdate>1996</risdate><volume>12</volume><issue>6</issue><spage>905</spage><epage>909</epage><pages>905-909</pages><issn>0910-6340</issn><eissn>1348-2246</eissn><coden>ANSCEN</coden><abstract>The response of an iridium oxide (IrO2) pH-sensor (nonaqueous version of METOX, TOA Electronics Ltd.) was studied in various dipolar aprotic solvents. From the potential measurements in picric acid-picrate solutions, it was confirmed to respond in a Nernstian way to the pH in all the solvents studied. The response speed of the IrO2 pH-sensor was compared with that of the glass electrode as well as those of the Si3N4- and Ta2O5-type pH-ISFETs, carrying out acid-base titrations at various speeds of titrant addition. The response speed of the IrO2 pH-sensor was much higher than that of the glass electrode, though it was somewhat lower than those of the pH-ISFETs. 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| ispartof | Analytical Sciences, 1996/12/10, Vol.12(6), pp.905-909 |
| issn | 0910-6340 1348-2246 |
| language | eng |
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| source | J-STAGE (Japan Science & Technology Information Aggregator, Electronic) Freely Available Titles - Japanese; Open Access Titles of Japan; EZB-FREE-00999 freely available EZB journals; Free Full-Text Journals in Chemistry |
| subjects | Analytical chemistry Chemistry Exact sciences and technology General, instrumentation glass electrode Iridium oxide pH-sensor nonaqueous solvent pH of nonaqueous solutions pH-ISFET potentiometry |
| title | Response of an Iridium Oxide pH-Sensor in Nonaqueous Solutions. Comparison with Other pH-Sensors |
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