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학술발표회초록보기

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  • 09월 08일 17시 이후 : 초록수정 불가능, 일정확인 및 검색만 가능

제116회 대한화학회 학술발표회, 총회 및 기기전시회 안내 In needle Microextraction with PDMS-based Coatings for Polar and Nonpolar Volatile Compounds

등록일
2015년 9월 8일 14시 38분 14초
접수번호
1382
발표코드
ANAL1-2 이곳을 클릭하시면 발표코드에 대한 설명을 보실 수 있습니다.
발표시간
목 13시 : 25분
발표형식
심포지엄
발표분야
분석화학 - Diverse Technologies in Spectroscopy - Joint Symposium with JAIMA
저자 및
공동저자
배선영
서울여자대학교 화학과, Korea
Volatile organic compounds are generally small molecules and emitted from various sources including food, cosmetics, environment and many different mediums. They can be considered as a significant indicator of freshness, quality control, and/or level of pollution. Needle-based headspace extraction methods have been investigated and a novel in-needle micro-extraction (INME) with polydimethylsiloxane (PDMS)-based coatings has been proposed. INME needle is easy to handling and inexpensive to fabricate. Depending coating materials in needle, the selectivity and extraction efficiency of both polar and non-polar compounds were enhanced. In addition, the micro-bore tunnel generated from filling the needle with the coating materials enhanced the sorption of compounds. The various PDMS-based coating materials were investigated to optimize the conditions for target compounds. Through this study, the coating phase/sample distribution constant, the volume of coating phase, the coating thickness, the diameter of the micro-bore tunnel, and length of the coating phase in the needle, and extraction time were found to be significant parameters for optimization of needle design and extraction efficiency. The proposed INME method with various coating materials was properly validated.

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