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. 2012 Mar 26;10(4):712–726. doi: 10.3390/md10040712

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© 2012 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 LC-ESI-CID-MS/MS obtained under MRM operation of the positive sample of Gibbula umbilicalis for the analogue monodeoxyTTX (m/z 304 > 286/176). XIC extracted ions chromatogram.