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  • 09월 04일 17시 이후 : 초록수정 불가능, 일정확인 및 검색만 가능

제114회 대한화학회 학술발표회, 총회 및 기기전시회 안내 Monitoring of surfactants in wet tissues and detergents by liquid chromatography-electrospray ionization/mass spectrometry

2014년 8월 27일 14시 04분 20초
ANAL.P-514 이곳을 클릭하시면 발표코드에 대한 설명을 보실 수 있습니다.
10월 15일 (수요일) 16:00~19:00
저자 및
오지선, 표희수1, 정봉철, 이정애2,*
한국과학기술연구원(KIST) 분자인식연구센터, Korea
1한국과학기술연구원(KIST) 융합오믹스센터, Korea
2한국과학기술연구원(KIST) 생체대사연구센타, Korea
Surfactants are the active ingredients in personal hygiene products and detergents for industrial and household cleaning. Some of them are known to be toxic to animals, ecosystems, and humans, and can increase a diffusion of other environmental contaminants. For this reason, they are widespread environmental pollutants. Their separation and identification can be difficult due to both the diversity of surfactants and the complexity of sample matrices. A variety of methods have been developed, it is challenging to choose proper methods for specific applications. The aim of this study was to develop a direct measurement of amphoteric, cationic and nonionic surfactants in detergents by liquid chromatography-electrospray ionization/mass spectrometry. The compounds were well separated through a reverse-phase column within the rate of 40 mins providing good peak shape, and were well quantified using a full-scan mode in ion-trap MS. The solvent system used was composed of water and acetonitrile or methanol with 0.1% formic acid as an ionization solvent to improve ion strength. The detection limits of surfactants were 0.003-0.2 ug/mL which could be detected down to 1~20 ug/mL. The calibration curves were linear in the working range of 0.01 ug/mL- 20 ug/mL with correlation coefficient values of above 0.99. The precision (% CV) and accuracy (% bias) of the assay were 0.2-9.9% and 92.3-117.8%, respectively. The proposed method allowed a sensitive and rapid detection of surfactants and it could be applied to monitoring surfactants from various cleaning agents, wet wipes and detergents.