气候变化领域集成服务门户(CCPortal): Seawater analysis by ambient mass-spectrometry-based seaomics

CCPortal

DOI	10.5194/acp-20-6243-2020
	Seawater analysis by ambient mass-spectrometry-based seaomics
	Zabalegui N.; Manzi M.; Depoorter A.; Hayeck N.; Roveretto M.; Li C.; Van Pinxteren M.; Herrmann H.; George C.; Monge M.E.
发表日期	2020
ISSN	16807316
起始页码	6243
结束页码	6257
卷号	20 期号:10
英文摘要	An analytical method coupled to multivariate statistical analysis was developed based on transmissionmode direct analysis in real-time quadrupole time-of-flight mass spectrometry (TM-DART-QTOF-MS) to interrogate lipophilic compounds in seawater samples without the need for desalinization. An untargeted metabolomics approach is addressed here as seaomics and was successfully implemented to discriminate the sea surface microlayer (SML) from the underlying water (ULW) samples (n D 22, 10 paired samples) collected during a field campaign at the Cabo Verde islands during September-October 2017. A panel of 11 ionic species detected in all samples allowed sample class discrimination by means of supervised multivariate statistical models. Tentative identification of the species enriched in the SML samples suggests that fatty alcohols, halogenated compounds, and oxygenated boron-containing organic compounds are available at the surface for air-water transfer processes. A subset of SML samples (n D 5) were subjected to on-site experiments during the campaign by using a lab-tofield approach to test their secondary organic aerosol (SOA) formation potency. The results from these experiments and the analytical seaomics strategy provide a proof of a concept that can be used for an approach to identifying organic molecules involved in aerosol formation processes at the air- water interface. © Author(s) 2020. This work is distributed under the Creative Commons Attribution 4.0 License.
关键词	aerosol formation air-water interaction mass spectrometry organic compound seawater Cape Verde [Macaronesia]
语种	英语
来源机构	Atmospheric Chemistry and Physics
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/132009
推荐引用方式 GB/T 7714	Zabalegui N.,Manzi M.,Depoorter A.,et al. Seawater analysis by ambient mass-spectrometry-based seaomics[J]. Atmospheric Chemistry and Physics,2020,20(10).
APA	Zabalegui N..,Manzi M..,Depoorter A..,Hayeck N..,Roveretto M..,...&Monge M.E..(2020).Seawater analysis by ambient mass-spectrometry-based seaomics.,20(10).
MLA	Zabalegui N.,et al."Seawater analysis by ambient mass-spectrometry-based seaomics".20.10(2020).