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Journal of the Korean Society for Environmental Analysis 2012;15(4):282-291.
Analysis of Triazines in Water using Orbitrap High Resolution and Accurate Mass Spectrometer
오비트랩 방식의 액체크로마토그래피 고분해능 정밀질량 분석방법을 적용한 수질 트리아진계 화합물의 미량분석방법
최재원
한국수자원공사
Abstract
Full scanning technology by high resolution and accurate mass spectrometer (HRAM) is one of most advanced methodology for identification and quantification of organic compounds. In this study, column switching technique based online preconcentration method was combined with high resolution full scan mass spectrometer to measure trizazine pesticides in water. After parameter optimization of online preconcentration,1 mL volume of filtered sample was used. For instrumental analysis, electrospray ionization (ESI) and orbitrap mass spectrometer with 100~600 amu scan range at 50,000 resolving power was tested. By this approach,available mass accuracy below 2.7 ppm (parts per million of monoisotopic mass), calibration linearities above 0.997, method detection limit (MDL) for 0.2~1.8 pg/mL, recoveries for 102~117% and repeatabilities below 4.3% were obtained. Method performance of online preconcentration with HRAM method is comparable to the state-of-the-art solid-phase extraction (SPE) with triple quadrupole mass spectrometer (MS/MS).
Key Words: Online preconcentration method, Orbitrap, HRAM, triazine pesticides, water


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