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Molecular mapping of sorbent selectivities with respect to isolation of arctic dissolved organic matter as measured by Fourier transform mass spectrometryстатья
Статья опубликована в высокорейтинговом журнале
Информация о цитировании статьи получена из
Web of Science,
Scopus
Статья опубликована в журнале из списка Web of Science и/или Scopus
Дата последнего поиска статьи во внешних источниках: 2 сентября 2014 г.
- Авторы: Perminova I.V., Dubinenkov I.V., Kononikhin A.S., Konstantinov A.I., Zherebker A.Ya, Andzhushev M.A., Lebedev V.A., Bulygina E., Holmes R.M., Kostyukevich Yu I., Popov I.A., Nikolaev E.N.
- Журнал: Environmental Science and Technology
- Том: 48
- Номер: 13
- Год издания: 2014
- Издательство: American Chemical Society
- Местоположение издательства: United States
- Первая страница: 7461
- Последняя страница: 7468
- DOI: 10.1021/es5015423
- Аннотация: The objectives of this study were to identify molecular features characteristic to arctic DOM from the Kolyma River basin and to elucidate structural imprints induced by a choice of the sorption technique. To achieve this goal, DOM was isolated from the Kolyma River basin with a use of three non-ionic sorbents: Amberlite XAD-8 resin, PPL- and C18 - SPE cartridges, and one anion exchanging resin – diethylaminoethyl (DEAE) -cellulose. The structural studies were conducted with a use of electrospray ionization Fourier Transform Ion Cyclotron Resonance (ESI FT-ICR) mass spectrometry and liquid state 1H NMR spectroscopy. The DOM isolates obtained with a use of PPL and C18 cartridges were characterized with higher content of aliphatic compounds as compared to XAD-8 and DEAE-isolates. In total, for all arctic DOM isolates we observed predominance of hydrogen saturated compounds with high H/C values of identified formulas from FT-ICR MS data. 1H NMR spectroscopy studies have confirmed this trend and revealed high contribution of alkyl-chain protons into the spectral density of the arctic DOM reaching 43% for PPL isolates.
- Добавил в систему: Перминова Ирина Васильевна