The purpose of this study is to create a new odor analysis technology that combines the separation technology of GC and the measurement of MOS sensors. The detector of the GC system is replaced with the MOS sensor to analyze various odor compounds. Carrier gas also used air in the normal atmosphere through a micro pump. Therefore, it is possible to develop a portable odor analysis device since no additional cylinder is needed. Retention times for H2S, C7H8, and C2H4O analyzed by the combined GC/MOS system were identified as 1.28 minutes, 3.88 minutes and 1.77 minutes, respectively. Measurement reproducibility of odorous RT was very good at less than 1.2 %RSD. Also, the magnitude of the peak as a result of changes in the concentration of each odor showed a linear proportional relationship. Thus, a new method could be proposed to analyze various odorous substances with the combined GC/MOS system.

Abstract
 1. 서 론
 2. 연구방법
  2.1 GC/MOS 시스템의 구성
  2.2 악취성분 분리를 위한 컬럼
  2.3 캐리어 가스
  2.4 검출기
 3. 결과 및 고찰
  3.1 단일 악취성분의 분리 및 농도 정량
  3.2 혼합 악취성분의 분리
 4. 결 론
 References

• 김한수(㈜에어웍스) | Han-Soo Kim (AIRWORKS Inc)
• 박영성(대전대학교 환경공학과) | Yeong-Seong Park (Department of Environmental Engineering, Daejeon University) Corresponding author
• 이재열(신평산업) | Jae-Yo’l Lee (SHINPYEONG Inc.)