| Presentation | 1999/6/25 An NO_2 sensor using porous glass (2) Takashi Ohyama, Yasuko Maruo:Yamada, Tohru Tanaka, Takayoshi Hayashi, |
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| PDF Download Page | PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | Coloration reactions between nitrogen dioxides (N0_2) and diazo-coupling reagents, which are basically reactions in aqueous solution, are shown to occur in the nano-pores of porous glass. We introduced sulfanilamide and N,N-dimethy1-1-naphthylamine as diazo-coupling reagents into porous glass. This organically doped porous glass sensor had one specific peak near 525 nm in the visible region after exposure to NO_2. We investigated the humidity dependence of its sensitivity during exposure to NO_2 in an artificial environment. The sensitivity was almost constant from 35 to 70% RH. Thus, our simple NO_2 detection system which was developed using the porous glass sensor, a light-emitting diode, and a photodiode, was able to determine the hourly variations in NO_2 concentration at the ppb level in an actual environment without being seriously affected by humidity in the range between 35 and 70% RH. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Porous glass / nitrogen dioxide / UV-visible absorption / diazo-coupling reagents |
| Paper # | OME99-42 |
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| Conference Information | |
| Committee | OME |
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| Conference Date | 1999/6/25(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
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| Paper Information | |
| Registration To | Organic Material Electronics (OME) |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | An NO_2 sensor using porous glass (2) |
| Sub Title (in English) | |
| Keyword(1) | Porous glass |
| Keyword(2) | nitrogen dioxide |
| Keyword(3) | UV-visible absorption |
| Keyword(4) | diazo-coupling reagents |
| 1st Author's Name | Takashi Ohyama |
| 1st Author's Affiliation | NTT Lifestyle and Environmental Technology Laboratories() |
| 2nd Author's Name | Yasuko Maruo:Yamada |
| 2nd Author's Affiliation | NTT Lifestyle and Environmental Technology Laboratories |
| 3rd Author's Name | Tohru Tanaka |
| 3rd Author's Affiliation | NTT Lifestyle and Environmental Technology Laboratories |
| 4th Author's Name | Takayoshi Hayashi |
| 4th Author's Affiliation | NTT Lifestyle and Environmental Technology Laboratories |
| Date | 1999/6/25 |
| Paper # | OME99-42 |
| Volume (vol) | vol.99 |
| Number (no) | 159 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |