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Comparative Analysis of Offensive Odorants in Urine Samples in Relation to Sample Treatment Conditions

Urine 시료 중 지정악취성분에 대한 분석연구: 시료의 보관방법과 채취조건의 연계성 연구

  • Lee, Min-Hee (Department of Civil & Environmental Engineering, Hanyang University) ;
  • Kim, Yong-Hyun (Department of Civil & Environmental Engineering, Hanyang University) ;
  • Jo, Sang-Hee (Department of Civil & Environmental Engineering, Hanyang University) ;
  • Choi, Si-On (Kimberly-Clark Innovation) ;
  • Sa, Inyoung (Kimberly-Clark Innovation) ;
  • Kim, Ki-Hyun (Department of Civil & Environmental Engineering, Hanyang University)
  • 이민희 (한양대학교 건설환경공학과) ;
  • 김용현 (한양대학교 건설환경공학과) ;
  • 조상희 (한양대학교 건설환경공학과) ;
  • 최시온 (킴벌리클라크 이노베이션) ;
  • 사인영 (킴벌리클라크 이노베이션) ;
  • 김기현 (한양대학교 건설환경공학과)
  • Received : 2014.07.01
  • Accepted : 2014.09.18
  • Published : 2014.10.31

Abstract

In this study, emission characteristics of volatile odorant species released from urine samples were investigated in relation to two key variables: [1] storage conditions before sampling and [2] incubation conditions during sampling. To this end, 20 offensive odorants were quantified by four different analytical systems and then sorted according to seven functional groups. It is indicated that benzene (B), styrene (S), isobutyl alcohol (i-BuAl), butyl acetate (BuAc), butyraldehyde (BA), isovaleraldehyde (IA), and valeraldehyde (VA) did not contribute to urine odor because their concentration levels were measured below detection limits in all samples. On the other hand, emission concentrations of toluene (T), methyl ethyl ketone (MEK), methyl mercaptan ($CH_3SH$), carbon disulfide ($CS_2$), and ammonia ($NH_3$) were generally higher than other compounds. In terms of odor intensity (OI), $CH_3SH$ and $NH_3$ showed the largest OI values in the range of 2~4. According to t-test (storage approach and urine temperature), the results of T, $CS_2$, and $NH_3$ were statistically distinguished from each other in terms of differences in sampling temperature. Likewise, the emissions of certain odorants from urine samples were affected by changes in sample treatment conditions to a degree.

Acknowledgement

Supported by : 한국연구재단

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