Determination of Dopamine Using Screen-printed Carbon Electrode Modified by PEDOT-MWCNTs double-layer Composites
The poly(3,4-ethylenedioxythiophene) (PEDOT)-MWCNTs composites with double-layer structure ((MWCNTs/PEDOT)2-PEDOT) were prepared on the commercially available screen-printed carbon electrode (SPCE) by a simple solution coating approach. Due to the unique double-layer structure and the good synergist...
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| Veröffentlicht in: | International journal of electrochemical science 2021-06, Vol.16 (6), p.210612, Article 210612 |
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| creator | Wei, Zhiqiang Hu, Yile Tu, Qingqing Cui, Shimeng Li, Yiran Gan, Yu Li, Guilong Yang, Hui Li, Sanqiang |
| description | The poly(3,4-ethylenedioxythiophene) (PEDOT)-MWCNTs composites with double-layer structure ((MWCNTs/PEDOT)2-PEDOT) were prepared on the commercially available screen-printed carbon electrode (SPCE) by a simple solution coating approach. Due to the unique double-layer structure and the good synergistic effect of PEDOT and MWCNTs, the (MWCNTs/PEDOT)2-PEDOT modified SPCE ((MWCNTs/PEDOT)2-PEDOT/SPCE) demonstrated excellent electrocatalytic properties for the oxidation of dopamine (DA). Under the optimal experimental conditions, the oxidation peak currents of DA increased linearly with two concentration intervals over the range of 0.02 - 0.95 μM and 0.0.95 - 15 μM, respectively. And the detection limit (S/N=3) was 0.01 μM. Furthermore, the proposed sensor was applied to the electrochemical determination of DA in Human serum samples, and the recoveries for DA were from 98.3% to 101.5% with relative standard deviation (RSD) between 2.7% and 3.8%. It showed great application prospects in pharmaceutical analysis. |
| doi_str_mv | 10.20964/2021.06.23 |
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Due to the unique double-layer structure and the good synergistic effect of PEDOT and MWCNTs, the (MWCNTs/PEDOT)2-PEDOT modified SPCE ((MWCNTs/PEDOT)2-PEDOT/SPCE) demonstrated excellent electrocatalytic properties for the oxidation of dopamine (DA). Under the optimal experimental conditions, the oxidation peak currents of DA increased linearly with two concentration intervals over the range of 0.02 - 0.95 μM and 0.0.95 - 15 μM, respectively. And the detection limit (S/N=3) was 0.01 μM. Furthermore, the proposed sensor was applied to the electrochemical determination of DA in Human serum samples, and the recoveries for DA were from 98.3% to 101.5% with relative standard deviation (RSD) between 2.7% and 3.8%. 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Due to the unique double-layer structure and the good synergistic effect of PEDOT and MWCNTs, the (MWCNTs/PEDOT)2-PEDOT modified SPCE ((MWCNTs/PEDOT)2-PEDOT/SPCE) demonstrated excellent electrocatalytic properties for the oxidation of dopamine (DA). Under the optimal experimental conditions, the oxidation peak currents of DA increased linearly with two concentration intervals over the range of 0.02 - 0.95 μM and 0.0.95 - 15 μM, respectively. And the detection limit (S/N=3) was 0.01 μM. Furthermore, the proposed sensor was applied to the electrochemical determination of DA in Human serum samples, and the recoveries for DA were from 98.3% to 101.5% with relative standard deviation (RSD) between 2.7% and 3.8%. It showed great application prospects in pharmaceutical analysis.</description><subject>Dopamine</subject><subject>Double-layer Composites</subject><subject>Electrochemistry</subject><subject>PEDOT-MWCNTs</subject><subject>Physical Sciences</subject><subject>Science & Technology</subject><subject>Screen-printed Carbon Electrode</subject><issn>1452-3981</issn><issn>1452-3981</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2021</creationdate><recordtype>article</recordtype><sourceid>HGBXW</sourceid><recordid>eNqNkE1PAyEQhjdGE5vak3-Au9nKsHQ_jmZbP5LWmtjGI4Fl1mC2ywa2mv57aWvUgwe5AJnnHZgnii6BjhktUn7NKIMxTccsOYkGwCcsToocTn-dz6OR9280LF4kPMsGUTfFHt3GtLI3tiW2JlPbyXBHsvamfSXPlUNs486ZtkdNSulU4GYNVr2zGsnCalObUFE78jSbLlfx4qV8XHmi7VY1GDdyh46UdtNZb3r0F9FZLRuPo699GK1vZ6vyPp4v7x7Km3lcJZD2caoQAIuCYiE55XUCkiU1MMjTSc4zqapQzCRVCvKa6kyrDApADgzzkNHJMLo69q2c9d5hLcIIG-l2Aqg4-BJ7X4KmgiWBzo_0Bypb-8pgW-F3IvhKU-DFXhwFVpr-YKu027b_eeg_0UBPjjSG2d8NOvGV0MYFpUJb8-cHPwFAWI82</recordid><startdate>20210601</startdate><enddate>20210601</enddate><creator>Wei, Zhiqiang</creator><creator>Hu, Yile</creator><creator>Tu, Qingqing</creator><creator>Cui, Shimeng</creator><creator>Li, Yiran</creator><creator>Gan, Yu</creator><creator>Li, Guilong</creator><creator>Yang, Hui</creator><creator>Li, Sanqiang</creator><general>Elsevier B.V</general><general>Esg</general><scope>6I.</scope><scope>AAFTH</scope><scope>BLEPL</scope><scope>DTL</scope><scope>HGBXW</scope><scope>AAYXX</scope><scope>CITATION</scope></search><sort><creationdate>20210601</creationdate><title>Determination of Dopamine Using Screen-printed Carbon Electrode Modified by PEDOT-MWCNTs double-layer Composites</title><author>Wei, Zhiqiang ; Hu, Yile ; Tu, Qingqing ; Cui, Shimeng ; Li, Yiran ; Gan, Yu ; Li, Guilong ; Yang, Hui ; Li, Sanqiang</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c316t-6be11e990e9a404f31a23f121865847abce997a0bb18f0d7db7191e412e80e9d3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2021</creationdate><topic>Dopamine</topic><topic>Double-layer Composites</topic><topic>Electrochemistry</topic><topic>PEDOT-MWCNTs</topic><topic>Physical Sciences</topic><topic>Science & Technology</topic><topic>Screen-printed Carbon Electrode</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Wei, Zhiqiang</creatorcontrib><creatorcontrib>Hu, Yile</creatorcontrib><creatorcontrib>Tu, Qingqing</creatorcontrib><creatorcontrib>Cui, Shimeng</creatorcontrib><creatorcontrib>Li, Yiran</creatorcontrib><creatorcontrib>Gan, Yu</creatorcontrib><creatorcontrib>Li, Guilong</creatorcontrib><creatorcontrib>Yang, Hui</creatorcontrib><creatorcontrib>Li, Sanqiang</creatorcontrib><collection>ScienceDirect Open Access Titles</collection><collection>Elsevier:ScienceDirect:Open Access</collection><collection>Web of Science Core Collection</collection><collection>Science Citation Index Expanded</collection><collection>Web of Science - Science Citation Index Expanded - 2021</collection><collection>CrossRef</collection><jtitle>International journal of electrochemical science</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Wei, Zhiqiang</au><au>Hu, Yile</au><au>Tu, Qingqing</au><au>Cui, Shimeng</au><au>Li, Yiran</au><au>Gan, Yu</au><au>Li, Guilong</au><au>Yang, Hui</au><au>Li, Sanqiang</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Determination of Dopamine Using Screen-printed Carbon Electrode Modified by PEDOT-MWCNTs double-layer Composites</atitle><jtitle>International journal of electrochemical science</jtitle><stitle>INT J ELECTROCHEM SC</stitle><date>2021-06-01</date><risdate>2021</risdate><volume>16</volume><issue>6</issue><spage>210612</spage><pages>210612-</pages><artnum>210612</artnum><issn>1452-3981</issn><eissn>1452-3981</eissn><abstract>The poly(3,4-ethylenedioxythiophene) (PEDOT)-MWCNTs composites with double-layer structure ((MWCNTs/PEDOT)2-PEDOT) were prepared on the commercially available screen-printed carbon electrode (SPCE) by a simple solution coating approach. Due to the unique double-layer structure and the good synergistic effect of PEDOT and MWCNTs, the (MWCNTs/PEDOT)2-PEDOT modified SPCE ((MWCNTs/PEDOT)2-PEDOT/SPCE) demonstrated excellent electrocatalytic properties for the oxidation of dopamine (DA). Under the optimal experimental conditions, the oxidation peak currents of DA increased linearly with two concentration intervals over the range of 0.02 - 0.95 μM and 0.0.95 - 15 μM, respectively. And the detection limit (S/N=3) was 0.01 μM. Furthermore, the proposed sensor was applied to the electrochemical determination of DA in Human serum samples, and the recoveries for DA were from 98.3% to 101.5% with relative standard deviation (RSD) between 2.7% and 3.8%. It showed great application prospects in pharmaceutical analysis.</abstract><cop>BELGRADE</cop><pub>Elsevier B.V</pub><doi>10.20964/2021.06.23</doi><tpages>11</tpages><oa>free_for_read</oa></addata></record> |
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| subjects | Dopamine Double-layer Composites Electrochemistry PEDOT-MWCNTs Physical Sciences Science & Technology Screen-printed Carbon Electrode |
| title | Determination of Dopamine Using Screen-printed Carbon Electrode Modified by PEDOT-MWCNTs double-layer Composites |
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