发明名称 |
Selective electrochemical detector for nitric oxide and method |
摘要 |
A thin film solid state amperometric detector for nitric oxide is provided based upon a mobile cation electrolyte that selectively transmits nitrosonium cations (NO*) therethrough. The presently most preferred embodiment employs NO- beta -alumina as the mobile cation electrolyte. The electrodes of the detector are preferably arranged in a bipotentiostat arrangement. The first and second working electrodes share a common reference electrode and a common counter electrode, which are positioned such that the potentials of the first and second working electrodes can be independently controlled. The first working electrode is exposed to a fluid (liquid or gaseous), whereas the second working electrode is normally isolated from the fluid. The first working electrode is set at a potential capable of oxidizing NO to NO+, the NO+ moves through the mobile cation solid electrolyte to the second electrode, and the second working electrode is set at a potential capable of reducing the NO+ back to NO. The detector has a diffusion barrier for the nitric oxide so that the voltage-current characteristics of the detector under diffusion limiting conditions are proportional to the concentration of nitric oxide in a fluid.
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申请公布号 |
US5580433(A) |
申请公布日期 |
1996.12.03 |
申请号 |
US19950540849 |
申请日期 |
1995.10.11 |
申请人 |
BAKER, CHARLES K.;RAM, MOHAN R. A.;WELLINGHOFF, STEPHEN T. |
发明人 |
BAKER, CHARLES K.;RAM, MOHAN R. A.;WELLINGHOFF, STEPHEN T. |
分类号 |
G01N27/407;(IPC1-7):G01N27/26 |
主分类号 |
G01N27/407 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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