Iron(II) Phthalocyanine-Modified Carbon-Paste Electrode for Potentiometric Detection of Ascorbic Acid
A chemically modified electrode constructed by incorporating iron(II) phthalocyanine [Fe(II)Pc] into carbon-paste matrix was used as a sensitive potentiometric sensor for detection of ascorbic acid. The resulting electrode exhibits catalytic properties for the electrooxidation of ascorbic acid, and...
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| Veröffentlicht in: | Analytical biochemistry 2001-03, Vol.290 (2), p.277-282 |
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| container_title | Analytical biochemistry |
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| creator | Amini, Mohammad K. Shahrokhian, Said Tangestaninejad, Shahram Mirkhani, Valiollah |
| description | A chemically modified electrode constructed by incorporating iron(II) phthalocyanine [Fe(II)Pc] into carbon-paste matrix was used as a sensitive potentiometric sensor for detection of ascorbic acid. The resulting electrode exhibits catalytic properties for the electrooxidation of ascorbic acid, and lowers the overpotential for the oxidation of this compound. The faster rate of electron transfer results in a near-Nernstian behavior of the modified electrode, and makes it a suitable potentiometric sensor for detection of ascorbic acid. A linear response in concentration range from 10−6 to 10−2 M (0.18–1800 μg ml−1) was obtained with a detection limit of 5 × 10−7 M for the potentiometric detection of ascorbic acid. The modified electrode was used for the determination of ascorbic acid in vitamin preparations. The recovery was 97.2–102.4% for the vitamin added to the preparations with a relative standard deviation of less than 5%. The modified electrode exhibited a fast response time ( |
| doi_str_mv | 10.1006/abio.2000.4929 |
| format | Article |
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The resulting electrode exhibits catalytic properties for the electrooxidation of ascorbic acid, and lowers the overpotential for the oxidation of this compound. The faster rate of electron transfer results in a near-Nernstian behavior of the modified electrode, and makes it a suitable potentiometric sensor for detection of ascorbic acid. A linear response in concentration range from 10−6 to 10−2 M (0.18–1800 μg ml−1) was obtained with a detection limit of 5 × 10−7 M for the potentiometric detection of ascorbic acid. The modified electrode was used for the determination of ascorbic acid in vitamin preparations. The recovery was 97.2–102.4% for the vitamin added to the preparations with a relative standard deviation of less than 5%. The modified electrode exhibited a fast response time (<10 s),had good stability, and had an extended lifetime.</description><identifier>ISSN: 0003-2697</identifier><identifier>EISSN: 1096-0309</identifier><identifier>DOI: 10.1006/abio.2000.4929</identifier><identifier>PMID: 11237330</identifier><language>eng</language><publisher>United States: Elsevier Inc</publisher><subject>ascorbic acid ; Ascorbic Acid - analysis ; Carbon - chemistry ; electrocatalysis ; Electrodes ; Indoles - chemistry ; Iron - chemistry ; iron(II) phthalocyanine ; modified electrode ; potentiometry ; Potentiometry - methods</subject><ispartof>Analytical biochemistry, 2001-03, Vol.290 (2), p.277-282</ispartof><rights>2001 Academic Press</rights><rights>Copyright 2001 Academic Press.</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c406t-6dab9886d78335c8d0fa09d080d9c5e3f4bfff639363af399e6666a821a1a1903</citedby><cites>FETCH-LOGICAL-c406t-6dab9886d78335c8d0fa09d080d9c5e3f4bfff639363af399e6666a821a1a1903</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://dx.doi.org/10.1006/abio.2000.4929$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>314,780,784,3548,27923,27924,45994</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/11237330$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Amini, Mohammad K.</creatorcontrib><creatorcontrib>Shahrokhian, Said</creatorcontrib><creatorcontrib>Tangestaninejad, Shahram</creatorcontrib><creatorcontrib>Mirkhani, Valiollah</creatorcontrib><title>Iron(II) Phthalocyanine-Modified Carbon-Paste Electrode for Potentiometric Detection of Ascorbic Acid</title><title>Analytical biochemistry</title><addtitle>Anal Biochem</addtitle><description>A chemically modified electrode constructed by incorporating iron(II) phthalocyanine [Fe(II)Pc] into carbon-paste matrix was used as a sensitive potentiometric sensor for detection of ascorbic acid. The resulting electrode exhibits catalytic properties for the electrooxidation of ascorbic acid, and lowers the overpotential for the oxidation of this compound. The faster rate of electron transfer results in a near-Nernstian behavior of the modified electrode, and makes it a suitable potentiometric sensor for detection of ascorbic acid. A linear response in concentration range from 10−6 to 10−2 M (0.18–1800 μg ml−1) was obtained with a detection limit of 5 × 10−7 M for the potentiometric detection of ascorbic acid. The modified electrode was used for the determination of ascorbic acid in vitamin preparations. The recovery was 97.2–102.4% for the vitamin added to the preparations with a relative standard deviation of less than 5%. The modified electrode exhibited a fast response time (<10 s),had good stability, and had an extended lifetime.</description><subject>ascorbic acid</subject><subject>Ascorbic Acid - analysis</subject><subject>Carbon - chemistry</subject><subject>electrocatalysis</subject><subject>Electrodes</subject><subject>Indoles - chemistry</subject><subject>Iron - chemistry</subject><subject>iron(II) phthalocyanine</subject><subject>modified electrode</subject><subject>potentiometry</subject><subject>Potentiometry - methods</subject><issn>0003-2697</issn><issn>1096-0309</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2001</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><recordid>eNp1kE1LAzEURYMoWj-2LmVWooupL5M2nSxLrVqo2IWuQyZ5oZHpRJNU6L83QwuufFk8uDm5kEPINYUhBeAPqnF-WAHAcCQqcUQGFAQvgYE4JoMcs7LiYnJGzmP8BKB0NOan5IzSik0YgwHBRfDd3WJxX6zWaa1ar3eqcx2Wr94469AUMxUa35UrFRMW8xZ1Ct5gYX0oVj5hl5zfYApOF4-Y8q3zXeFtMY3ahyanU-3MJTmxqo14ddgX5ONp_j57KZdvz4vZdFnqEfBUcqMaUdfcTGrGxro2YBUIAzUYocfI7Kix1nImGGfKMiGQ51F1RVU-AtgFud33fgX_vcWY5MZFjW2rOvTbKCeQZdTQg8M9qIOPMaCVX8FtVNhJCrIXK3uxshcre7H5wc2hedts0PzhB5MZqPcA5v_9OAwyaoedRuNCtiKNd_91_wL5OIc0</recordid><startdate>200103</startdate><enddate>200103</enddate><creator>Amini, Mohammad K.</creator><creator>Shahrokhian, Said</creator><creator>Tangestaninejad, Shahram</creator><creator>Mirkhani, Valiollah</creator><general>Elsevier Inc</general><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>200103</creationdate><title>Iron(II) Phthalocyanine-Modified Carbon-Paste Electrode for Potentiometric Detection of Ascorbic Acid</title><author>Amini, Mohammad K. ; Shahrokhian, Said ; Tangestaninejad, Shahram ; Mirkhani, Valiollah</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c406t-6dab9886d78335c8d0fa09d080d9c5e3f4bfff639363af399e6666a821a1a1903</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2001</creationdate><topic>ascorbic acid</topic><topic>Ascorbic Acid - analysis</topic><topic>Carbon - chemistry</topic><topic>electrocatalysis</topic><topic>Electrodes</topic><topic>Indoles - chemistry</topic><topic>Iron - chemistry</topic><topic>iron(II) phthalocyanine</topic><topic>modified electrode</topic><topic>potentiometry</topic><topic>Potentiometry - methods</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Amini, Mohammad K.</creatorcontrib><creatorcontrib>Shahrokhian, Said</creatorcontrib><creatorcontrib>Tangestaninejad, Shahram</creatorcontrib><creatorcontrib>Mirkhani, Valiollah</creatorcontrib><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>Analytical biochemistry</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Amini, Mohammad K.</au><au>Shahrokhian, Said</au><au>Tangestaninejad, Shahram</au><au>Mirkhani, Valiollah</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Iron(II) Phthalocyanine-Modified Carbon-Paste Electrode for Potentiometric Detection of Ascorbic Acid</atitle><jtitle>Analytical biochemistry</jtitle><addtitle>Anal Biochem</addtitle><date>2001-03</date><risdate>2001</risdate><volume>290</volume><issue>2</issue><spage>277</spage><epage>282</epage><pages>277-282</pages><issn>0003-2697</issn><eissn>1096-0309</eissn><abstract>A chemically modified electrode constructed by incorporating iron(II) phthalocyanine [Fe(II)Pc] into carbon-paste matrix was used as a sensitive potentiometric sensor for detection of ascorbic acid. The resulting electrode exhibits catalytic properties for the electrooxidation of ascorbic acid, and lowers the overpotential for the oxidation of this compound. The faster rate of electron transfer results in a near-Nernstian behavior of the modified electrode, and makes it a suitable potentiometric sensor for detection of ascorbic acid. A linear response in concentration range from 10−6 to 10−2 M (0.18–1800 μg ml−1) was obtained with a detection limit of 5 × 10−7 M for the potentiometric detection of ascorbic acid. The modified electrode was used for the determination of ascorbic acid in vitamin preparations. The recovery was 97.2–102.4% for the vitamin added to the preparations with a relative standard deviation of less than 5%. The modified electrode exhibited a fast response time (<10 s),had good stability, and had an extended lifetime.</abstract><cop>United States</cop><pub>Elsevier Inc</pub><pmid>11237330</pmid><doi>10.1006/abio.2000.4929</doi><tpages>6</tpages></addata></record> |
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| ispartof | Analytical biochemistry, 2001-03, Vol.290 (2), p.277-282 |
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| language | eng |
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| source | MEDLINE; ScienceDirect Journals (5 years ago - present) |
| subjects | ascorbic acid Ascorbic Acid - analysis Carbon - chemistry electrocatalysis Electrodes Indoles - chemistry Iron - chemistry iron(II) phthalocyanine modified electrode potentiometry Potentiometry - methods |
| title | Iron(II) Phthalocyanine-Modified Carbon-Paste Electrode for Potentiometric Detection of Ascorbic Acid |
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