发明名称 |
Nitrogen dioxide gas sensing method, nitrogen dioxide gas sensor element, and nitrogen dioxide gas sensor using the same |
摘要 |
In this invention, a mixture of a diazotizing reagent which reacts with nitrous ions to produce a diazo compound, a coupling reagent which couples with a diazo compound to produce an azo dye, and an acid is placed in pores of a transparent porous body to prepare a sensor element. Nitrogen dioxide gas is sensed in accordance with a color change before and after the sensor element is exposed to air to be measured for a predetermined time.
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申请公布号 |
US6362005(B1) |
申请公布日期 |
2002.03.26 |
申请号 |
US19980139066 |
申请日期 |
1998.08.24 |
申请人 |
NIPPON TELEGRAPH AND TELEPHONE CORPORATION |
发明人 |
TANAKA TOHRU;HAYASHI TAKAYOSHI;MATSUMOTO SHIRO;MARUO YASUKO;OHYAMA TAKASHI |
分类号 |
G01N21/78;G01N31/22;(IPC1-7):G01N33/00;G01N21/01;G01N21/25 |
主分类号 |
G01N21/78 |
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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