Trace Level Determination of Saccharides in Pristine Marine Aerosols by Gas Chromatography-Tandem Mass Spectrometry
- 주제(키워드) Antarctica , marine aerosol , gas chromatography , tandem mass spectrometry , saccharides , IBRV Araon
- 주제(기타) Environmental Sciences
- 주제(기타) Toxicology
- 설명문(일반) [Choi, Na-Rae; Kim, Ki-Ae; Lee, Ji-Yi] Ewha Womans Univ, Dept Environm Sci & Engn, Seoul 03760, South Korea; [Yoon, Yong-Jun; Park, Ki-Tae] Korea Polar Res Inst, Div Polar Climate Sci, Incheon 21990, South Korea; [Kim, Yong-Pyo] Ewha Womans Univ, Dept Chem Engn & Mat Sci, Grad Program Syst Hlth Sci & Engn, Seoul 03760, South Korea; [Ahn, Yun-Gyong] Korea Basic Sci Inst, Western Seoul Ctr, Seoul 03759, South Korea
- 등재 SCIE, SCOPUS
- 발행기관 MDPI
- 발행년도 2021
- 총서유형 Journal
- URI http://www.dcollection.net/handler/ewha/000000181566
- 본문언어 영어
- Published As http://dx.doi.org/10.3390/toxics9040086
초록/요약
The quantification and identification of saccharides in pristine marine aerosols can provide useful information for determining the contributions of anthropogenic and natural sources of the aerosol. However, individual saccharide compounds in pristine marine aerosols that exist in trace amounts are difficult to analyze due to their low concentrations. Thus, in this study, we applied gas chromatography-tandem mass spectrometry (GC-MS/MS) in multiple reaction monitoring (MRM) mode to analyze the particulate matter with an aerodynamic diameter equal or less than 2.5 mu m (PM2.5) samples, and the results were compared with those of conventional GC-MS. To investigate the chemical properties of pristine marine aerosols, 12 PM2.5 samples were collected while aboard Araon, an ice-breaking research vessel (IBRV), as it sailed from Incheon, South Korea to Antarctica. The method detection limits of GC-MS/MS for 10 saccharides were 2-22-fold lower than those of GC-MS. Consequently, the advantages of GC-MS/MS include (1) more distinct peak separations, enabling the accurate identification of the target saccharides and (2) the quantification of all individual saccharide compounds with concentrations outside the quantifiable range of GC-MS. Accordingly, the time resolution for sampling saccharides in pristine marine aerosols can be improved with GC-MS/MS.
more