A Theoretical and Experimental Framework for Understanding Electrogenerated Chemiluminescence (ECL) Emission at Bipolar Electrodes
Bipolar electrodes are potentially useful for a variety of sensing applications, but their implementation has been hampered by an inability to easily monitor the current through such electrodes. However, current can be indirectly determined using electrogenerated chemiluminescence (ECL) as a reporti...
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| Veröffentlicht in: | Analytical chemistry (Washington) 2009-08, Vol.81 (15), p.6218-6225 |
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| container_title | Analytical chemistry (Washington) |
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| creator | Mavré, François Chow, Kwok-Fan Sheridan, Eoin Chang, Byoung-Yong Crooks, John A Crooks, Richard M |
| description | Bipolar electrodes are potentially useful for a variety of sensing applications, but their implementation has been hampered by an inability to easily monitor the current through such electrodes. However, current can be indirectly determined using electrogenerated chemiluminescence (ECL) as a reporting mechanism. This paper provides a detailed theoretical analysis of ECL reporting at bipolar electrodes. In addition, experiments are described that confirm the theory. Finally, we correlate ECL intensity directly to current through the use of split bipolar electrodes. The results indicate that the lowest current that can be indirectly detected through ECL reporting is ∼32 μA/cm2, which corresponds to a reporting sensitivity of ∼7200 counts/nA in the present experimental system. |
| doi_str_mv | 10.1021/ac900744p |
| format | Article |
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Chem</addtitle><date>2009-08-01</date><risdate>2009</risdate><volume>81</volume><issue>15</issue><spage>6218</spage><epage>6225</epage><pages>6218-6225</pages><issn>0003-2700</issn><eissn>1520-6882</eissn><coden>ANCHAM</coden><abstract>Bipolar electrodes are potentially useful for a variety of sensing applications, but their implementation has been hampered by an inability to easily monitor the current through such electrodes. However, current can be indirectly determined using electrogenerated chemiluminescence (ECL) as a reporting mechanism. This paper provides a detailed theoretical analysis of ECL reporting at bipolar electrodes. In addition, experiments are described that confirm the theory. Finally, we correlate ECL intensity directly to current through the use of split bipolar electrodes. 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| source | ACS Publications |
| subjects | Analytical chemistry Chemistry Electrocatalysis Electrodes Exact sciences and technology Luminescence |
| title | A Theoretical and Experimental Framework for Understanding Electrogenerated Chemiluminescence (ECL) Emission at Bipolar Electrodes |
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