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. 2013 Jun 5;11(6):1936–1960. doi: 10.3390/md11061936

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© 2013 by the authors; licensee MDPI, Basel, Switzerland.

This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution license (http://creativecommons.org/licenses/by/3.0/).

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Mass chromatograms of the UPLC-MS/MS obtained under MRM operation: (A) total ion chromatogram (TIC) of OA standard 200 ng/mL, m/z 803.5 > 255.5/113.5; (B) TIC of a positive sample for OA in M. glacialis, m/z 803.5 > 255.5/113.5.