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  • 09월 01일 18시 이후 : 초록수정 불가능, 일정확인 및 검색만 가능

제118회 대한화학회 학술발표회, 총회 및 기기전시회 안내 Application of Ultra-high resolution 2-Omega FT-ICR MS for the Analysis of Complex Mixture

2016년 8월 24일 15시 14분 06초
ANAL1.O-22 이곳을 클릭하시면 발표코드에 대한 설명을 보실 수 있습니다.
목 10시 : 50분
분석화학 - Oral Presentation of Young Analytical Chemists Ⅰ
저자 및
조은지, 김성환*
경북대학교 화학과, Korea
It is important to understand the chemical compositions of complex mixture including crude oil. There are many studies on analyzing the chemical compositions of crude oil using ultrahigh-resolution mass spectrometry (UHR-MS). Analysis of crude oil using Fourier transform ion cyclotron mass spectrometry (FT-ICR MS) has a great advantage. In those application, resolution and mass accuracy plays a key role in accessing accurate chemical compositions. The resolution of FT-ICR MS is increased proportional to the measured frequency. A new technique called “2-Omega” has been recently developed. In the technique, two pairs of electrodes comprising FT-ICR MS detector cell are used for detection. Therefore, the measured resolution is supposed to be doubled compared to the old design where only one pair of electrodes is used for detection. In this study, ultrahigh resolution mass spectra of crude oil were obtained and presented. The obtained mass accuracy and resolution are presented. The resolution of 2-Omega FT-ICR MS spectra were well over one million. The data were also examined to check the existence of 1-Omega peaks because they can cause mis-interpretation. The data presented in this study clearly shows that 2-Omega FT-ICR MS can be very useful in the analysis of complex mixture such as crude oil. To the best of our knowledge, this is the first report on the application of 2-Omega FT-ICR MS to study crude oils.