Flow-Injection Amperometric Determination of DOPA and Tyrosine at a Dual Electrode Modified with the Gold–Cobalt Binary System
The gold–cobalt binary system, electrodeposited on the surface of a screen-printed electrode, exhibits catalytic activity in the electrooxidation of DOPA and tyrosine. The catalytic effect is shown in a multiple increase in current compared with the oxidation current of the modifier and a decrease i...
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| Veröffentlicht in: | Journal of analytical chemistry (New York, N.Y.) N.Y.), 2018-02, Vol.73 (2), p.176-182 |
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| container_end_page | 182 |
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| container_issue | 2 |
| container_start_page | 176 |
| container_title | Journal of analytical chemistry (New York, N.Y.) |
| container_volume | 73 |
| creator | Shaidarova, L. G. Chelnokova, I. A. Leksina, Yu. A. Il’ina, M. A. Gedmina, A. V. Budnikov, H. C. |
| description | The gold–cobalt binary system, electrodeposited on the surface of a screen-printed electrode, exhibits catalytic activity in the electrooxidation of DOPA and tyrosine. The catalytic effect is shown in a multiple increase in current compared with the oxidation current of the modifier and a decrease in the oxidation overvoltage of organic compounds. Methods for the flow-injection amperometric determination of DOPA and tyrosine at the proposed modified electrode are developed. The simultaneous amperometric determination of DOPA and tyrosine at a dual screen-printed electrode modified with an Au–Co binary system the under conditions of flow-injection analysis is demonstrated. The linear dependence of the analytical signal on the concentration of DOPA and tyrosine is observed in the ranges from 1 × 10
–9
to 1 × 10
–4
M and from 5 × 10
–8
to 5 × 10
–4
M, respectively. |
| doi_str_mv | 10.1134/S1061934818020119 |
| format | Article |
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–9
to 1 × 10
–4
M and from 5 × 10
–8
to 5 × 10
–4
M, respectively.</description><identifier>ISSN: 1061-9348</identifier><identifier>EISSN: 1608-3199</identifier><identifier>DOI: 10.1134/S1061934818020119</identifier><language>eng</language><publisher>Moscow: Pleiades Publishing</publisher><subject>Analytical Chemistry ; Binary system ; Catalysis ; Catalytic activity ; Chemical properties ; Chemistry ; Chemistry and Materials Science ; Cobalt ; Dihydroxyphenylalanine ; Electric properties ; Electrical measurement ; Electrodes ; Gold ; Measurement ; Organic compounds ; Oxidation ; Tyrosine</subject><ispartof>Journal of analytical chemistry (New York, N.Y.), 2018-02, Vol.73 (2), p.176-182</ispartof><rights>Pleiades Publishing, Ltd. 2018</rights><rights>COPYRIGHT 2018 Springer</rights><rights>Copyright Springer Science & Business Media 2018</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c455t-22f0833dafa3e288ba1a896b2fe830dce681ef46f50f3e6cebebe28cd657a16f3</citedby><cites>FETCH-LOGICAL-c455t-22f0833dafa3e288ba1a896b2fe830dce681ef46f50f3e6cebebe28cd657a16f3</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://link.springer.com/content/pdf/10.1134/S1061934818020119$$EPDF$$P50$$Gspringer$$H</linktopdf><linktohtml>$$Uhttps://link.springer.com/10.1134/S1061934818020119$$EHTML$$P50$$Gspringer$$H</linktohtml><link.rule.ids>314,777,781,27905,27906,41469,42538,51300</link.rule.ids></links><search><creatorcontrib>Shaidarova, L. G.</creatorcontrib><creatorcontrib>Chelnokova, I. A.</creatorcontrib><creatorcontrib>Leksina, Yu. A.</creatorcontrib><creatorcontrib>Il’ina, M. A.</creatorcontrib><creatorcontrib>Gedmina, A. V.</creatorcontrib><creatorcontrib>Budnikov, H. C.</creatorcontrib><title>Flow-Injection Amperometric Determination of DOPA and Tyrosine at a Dual Electrode Modified with the Gold–Cobalt Binary System</title><title>Journal of analytical chemistry (New York, N.Y.)</title><addtitle>J Anal Chem</addtitle><description>The gold–cobalt binary system, electrodeposited on the surface of a screen-printed electrode, exhibits catalytic activity in the electrooxidation of DOPA and tyrosine. The catalytic effect is shown in a multiple increase in current compared with the oxidation current of the modifier and a decrease in the oxidation overvoltage of organic compounds. Methods for the flow-injection amperometric determination of DOPA and tyrosine at the proposed modified electrode are developed. The simultaneous amperometric determination of DOPA and tyrosine at a dual screen-printed electrode modified with an Au–Co binary system the under conditions of flow-injection analysis is demonstrated. The linear dependence of the analytical signal on the concentration of DOPA and tyrosine is observed in the ranges from 1 × 10
–9
to 1 × 10
–4
M and from 5 × 10
–8
to 5 × 10
–4
M, respectively.</description><subject>Analytical Chemistry</subject><subject>Binary system</subject><subject>Catalysis</subject><subject>Catalytic activity</subject><subject>Chemical properties</subject><subject>Chemistry</subject><subject>Chemistry and Materials Science</subject><subject>Cobalt</subject><subject>Dihydroxyphenylalanine</subject><subject>Electric properties</subject><subject>Electrical measurement</subject><subject>Electrodes</subject><subject>Gold</subject><subject>Measurement</subject><subject>Organic compounds</subject><subject>Oxidation</subject><subject>Tyrosine</subject><issn>1061-9348</issn><issn>1608-3199</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2018</creationdate><recordtype>article</recordtype><recordid>eNp1ksFuEzEQhlcIJErhAbhZ4sRhi2e963qPIWlLpKIiUs6WY49TR7t2sB2V3PoOvCFPgkuQqoigOdjy__3_SOOpqrdAzwBY-2EBlEPPWgGCNhSgf1adAKeiZtD3z8u9yPWj_rJ6ldKaUtoL4CfVw-UQ7uu5X6POLngyGTcYw4g5Ok1mmDGOzqs_UrBkdvNlQpQ35HYXQ3IeicpEkdlWDeRiKBExGCSfg3HWoSH3Lt-RfIfkKgzm18PPaViqIZOPJTHuyGKXMo6vqxdWDQnf_D1Pq2-XF7fTT_X1zdV8Ormuddt1uW4aSwVjRlnFsBFiqUCJni8bi4JRo5ELQNty21HLkGtclmqENrw7V8AtO63e7XM3MXzfYspyHbbRl5ayzIsBB35On6iVGlA6b0OOSo8uaTnpWiiNRQOFqo9QK_QY1RA8WleeD_izI3wpg6PTRw3vDwyFyfgjr9Q2JTlffD1kYc_q8iUpopWb6MYyYAlUPu6G_Gc3iqfZe1Jh_Qrj0zD-b_oNs2G6LA</recordid><startdate>20180201</startdate><enddate>20180201</enddate><creator>Shaidarova, L. G.</creator><creator>Chelnokova, I. A.</creator><creator>Leksina, Yu. A.</creator><creator>Il’ina, M. A.</creator><creator>Gedmina, A. V.</creator><creator>Budnikov, H. C.</creator><general>Pleiades Publishing</general><general>Springer</general><general>Springer Nature B.V</general><scope>AAYXX</scope><scope>CITATION</scope><scope>ISR</scope></search><sort><creationdate>20180201</creationdate><title>Flow-Injection Amperometric Determination of DOPA and Tyrosine at a Dual Electrode Modified with the Gold–Cobalt Binary System</title><author>Shaidarova, L. G. ; Chelnokova, I. A. ; Leksina, Yu. A. ; Il’ina, M. A. ; Gedmina, A. V. ; Budnikov, H. C.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c455t-22f0833dafa3e288ba1a896b2fe830dce681ef46f50f3e6cebebe28cd657a16f3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2018</creationdate><topic>Analytical Chemistry</topic><topic>Binary system</topic><topic>Catalysis</topic><topic>Catalytic activity</topic><topic>Chemical properties</topic><topic>Chemistry</topic><topic>Chemistry and Materials Science</topic><topic>Cobalt</topic><topic>Dihydroxyphenylalanine</topic><topic>Electric properties</topic><topic>Electrical measurement</topic><topic>Electrodes</topic><topic>Gold</topic><topic>Measurement</topic><topic>Organic compounds</topic><topic>Oxidation</topic><topic>Tyrosine</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Shaidarova, L. G.</creatorcontrib><creatorcontrib>Chelnokova, I. A.</creatorcontrib><creatorcontrib>Leksina, Yu. A.</creatorcontrib><creatorcontrib>Il’ina, M. A.</creatorcontrib><creatorcontrib>Gedmina, A. V.</creatorcontrib><creatorcontrib>Budnikov, H. C.</creatorcontrib><collection>CrossRef</collection><collection>Gale In Context: Science</collection><jtitle>Journal of analytical chemistry (New York, N.Y.)</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Shaidarova, L. G.</au><au>Chelnokova, I. A.</au><au>Leksina, Yu. A.</au><au>Il’ina, M. A.</au><au>Gedmina, A. V.</au><au>Budnikov, H. C.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Flow-Injection Amperometric Determination of DOPA and Tyrosine at a Dual Electrode Modified with the Gold–Cobalt Binary System</atitle><jtitle>Journal of analytical chemistry (New York, N.Y.)</jtitle><stitle>J Anal Chem</stitle><date>2018-02-01</date><risdate>2018</risdate><volume>73</volume><issue>2</issue><spage>176</spage><epage>182</epage><pages>176-182</pages><issn>1061-9348</issn><eissn>1608-3199</eissn><abstract>The gold–cobalt binary system, electrodeposited on the surface of a screen-printed electrode, exhibits catalytic activity in the electrooxidation of DOPA and tyrosine. The catalytic effect is shown in a multiple increase in current compared with the oxidation current of the modifier and a decrease in the oxidation overvoltage of organic compounds. Methods for the flow-injection amperometric determination of DOPA and tyrosine at the proposed modified electrode are developed. The simultaneous amperometric determination of DOPA and tyrosine at a dual screen-printed electrode modified with an Au–Co binary system the under conditions of flow-injection analysis is demonstrated. The linear dependence of the analytical signal on the concentration of DOPA and tyrosine is observed in the ranges from 1 × 10
–9
to 1 × 10
–4
M and from 5 × 10
–8
to 5 × 10
–4
M, respectively.</abstract><cop>Moscow</cop><pub>Pleiades Publishing</pub><doi>10.1134/S1061934818020119</doi><tpages>7</tpages></addata></record> |
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| identifier | ISSN: 1061-9348 |
| ispartof | Journal of analytical chemistry (New York, N.Y.), 2018-02, Vol.73 (2), p.176-182 |
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| language | eng |
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| source | SpringerLink Journals - AutoHoldings |
| subjects | Analytical Chemistry Binary system Catalysis Catalytic activity Chemical properties Chemistry Chemistry and Materials Science Cobalt Dihydroxyphenylalanine Electric properties Electrical measurement Electrodes Gold Measurement Organic compounds Oxidation Tyrosine |
| title | Flow-Injection Amperometric Determination of DOPA and Tyrosine at a Dual Electrode Modified with the Gold–Cobalt Binary System |
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