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| Titel |
A method for analysis of vanillic acid in polar ice cores |
| VerfasserIn |
M. M. Grieman, J. Greaves, E. S. Saltzman |
| Medientyp |
Artikel
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| Sprache |
Englisch
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| ISSN |
1814-9324
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| Digitales Dokument |
URL |
| Erschienen |
In: Climate of the Past ; 11, no. 2 ; Nr. 11, no. 2 (2015-02-11), S.227-232 |
| Datensatznummer |
250117165
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| Publikation (Nr.) |
 copernicus.org/cp-11-227-2015.pdf |
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| Zusammenfassung |
| Biomass burning generates a wide range of organic compounds that are
transported via aerosols to the polar ice sheets. Vanillic acid is
a product of conifer lignin combustion, which has previously been
observed in laboratory and ambient biomass burning aerosols. In this
study a method was developed for analysis of vanillic acid in melted
polar ice core samples. Vanillic acid was chromatographically
separated using reversed-phase liquid chromatography (HPLC) and detected using
electrospray ionization–triple quadrupole mass spectrometry (ESI-MS/MS). Using
a 100 μL injection loop and analysis time of 4 min,
we obtained a detection limit of 77 ppt (parts per trillion by
mass) and an analytical precision of ±10%. Measurements
of vanillic acid in Arctic ice core samples from the Siberian Akademii
Nauk core are shown as an example application of the method. |
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