发明名称 |
Microchip-based differential carbon dioxide gas sensor |
摘要 |
<p>There is provided a microchip-based differential-type carbon dioxide gas sensor for detecting dissolved carbon dioxide levels. It functions with at least one working electrode composed of an unbuffered hydrogel membrane containing a certain amount of sodium bicarbonate and a pH-sensitive gas-permeable membrane; and a reference electrode composed of a buffered hydrogel membrane and a pH-sensitive gas-permeable membrane. The unbuffered hydrogel membrane contains carbonic anhydrase, which reduces the time period for the hydration of carbon dioxide, thereby allowing the quick measurement of the level of carbon dioxide. In addition to being significantly improved in stabilization, sensing, and recovering time periods, the differential-type carbon dioxide gas sensor can be fabricated in small sizes and quickly measure levels of carbon dioxide dissolved in sample solution. <IMAGE></p> |
申请公布号 |
EP1164372(A2) |
申请公布日期 |
2001.12.19 |
申请号 |
EP20010113705 |
申请日期 |
2001.06.02 |
申请人 |
I-SENS, INC. |
发明人 |
LEE, JAE SEON;SHIN, JAE HO;LEE, MIN HYUNG;NAM, HAKHYUN;CHA, GEUN SIG |
分类号 |
G01N27/333;G01N27/416;G01N33/00;(IPC1-7):G01N27/416;G01N27/40 |
主分类号 |
G01N27/333 |
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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