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제112회 대한화학회 학술발표회, 총회 및 기기전시회 안내 A New Strategy for the Determination of Self-Exchange Rate of Alkanethiolates on Self-Assembled Monolayers on Gold using MALDI-TOF MS

등록일
2013년 9월 2일 13시 25분 32초
접수번호
1270
발표코드
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발표시간
금 11시 : 30분
발표형식
구두발표
발표분야
분석화학 - Oral Presentation of Young Analytical Chemists
저자 및
공동저자
강현욱, 여운석*
건국대학교 생명공학과, Korea
In this paper, we describe a new method for the determination of exchange rates of alkanethiolates on Self-assembled monolayers (SAMs) on gold using matrix assisted laser desorption/ionization time of flight mass spectrometry (MALDI-TOF MS), by which the composition of alkanethiolates on SAMs can be analyzed rapidly and directly. Particularly, for the investigation of the self-exchange of an alkanethiol, we prepared the deuterated alkanethiol that has the same molecular properties to the non-deuterated alkanethiol but a different molecular weight. Monolayers consisting of deuterated alkanethiolates were immersed into a solution of the non-deuterated alkanethiol, and influences of immersion time, concentration, temperature, and solvent upon the self-exchange rates were investigated. Furthermore, we investigated the exchange rates between alkanethiols which have different carbon chain lengths or ethylene glycol units.

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