[17p-Z13-1~8] 1.6 Ultrasonics

[17p-Z13-7] Odorant analysis of sake by using ball SAW gas chromatograph

〇Shingo Akao¹, Takamitsu Iwaya¹, Tatsuhiro Okano¹, Nobuo Takeda¹, Yusuke Tsukahara¹, Toru Oizumi¹, Hideyuki Fukushi¹, Tomoki Tanaka¹, Maki Sugawara¹, Toshihiro Tsuji^2,1, Ryoko Hiraoka¹, Akinobu Takeda¹, Kazushi Yamanaka^1,2 (1.Ball Wave Inc., 2.Tohoku Univ.)

Keywords:ball SAW sensor, surface acoustic wave, gas chromatograph

On-site analysis of many kinds of volatile organic compounds (VOC) has various needs. For example, for safety of workers in factories, monitoring of atmospheric gas, quality control by aroma component analysis in food production can be expected. A gas chromatograph (GC) is effective for multi-type gas analysis, but in general, GC is large and difficult to apply in the field.
On the other hand, we have developed a portable GC using ball surface acoustic wave (SAW) sensors (ball SAW GC) where the SAW makes multiple roundtrips on a spherical piezoelectric crystal. Recently, the ball SAW GC succeeded in analyzing VOCs at ppbv levels by the development of a preconcentrator (PC) that traps and injects VOCs by thermal desorption.
In this study, the ordarants of sake, a brewed beverage, were analyzed using the ball SAW GC.