Development of ball surface acoustic wave gas chromatograph for environmental monitoring in spacecraft and its application on the ground

For on-site analysis of surface materials on the Moon, planets, and small bodies and for the monitoring of air quality in crewed spacecraft, we have developed a portable gas chromatograph (GC) equipped with a ball surface acoustic wave (SAW) sensor. In this study, we fabricated a 10 cm cube GC that...

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Bibliographic Details
Published in:Japanese Journal of Applied Physics 2022-07, Vol.61 (SG), p.SG1051
Main Authors: Iwaya, Takamitsu, Akao, Shingo, Yamanaka, Kazushi, Okano, Tatsuhiro, Takeda, Nobuo, Tsukahara, Yusuke, Oizumi, Toru, Fukushi, Hideyuki, Sugawara, Maki, Tsuji, Toshihiro, Tanaka, Tomoki, Takeda, Akinobu, Shima, Asuka, Matsumoto, Satoshi, Sugahara, Haruna, Hoshino, Takeshi, Sakashita, Tetsuya
Format: Article
Language:English
Subjects:
Air monitoring
Air quality
Brewing
Environmental monitoring
gas chromatograph
Gas chromatography
Lunar surface
Microchannels
Odorants
sensor
Spacecraft
Stainless steels
Steel plates
surface acoustic wave
Surface acoustic wave devices
Surface acoustic waves
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Summary:For on-site analysis of surface materials on the Moon, planets, and small bodies and for the monitoring of air quality in crewed spacecraft, we have developed a portable gas chromatograph (GC) equipped with a ball surface acoustic wave (SAW) sensor. In this study, we fabricated a 10 cm cube GC that implements the forward flush method using two metal micro-electro-mechanical-system columns coated with different stationary phases in microchannels fabricated by wet etching and diffusion bonding of stainless-steel plates. Using this GC, we succeeded in analyzing 10 kinds of gas within 10 min. In addition, for the application of the ball SAW GC on the ground, we also developed a palm-sized GC with a single metal capillary column and used it in the analysis of the headspace gas of sake. We showed that the ratio of peak areas differed among odorants depending on the brand and brewing process of sake.
ISSN:0021-4922
1347-4065
DOI:10.35848/1347-4065/ac49fb