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. 2016 Feb 25;21(3):260. doi: 10.3390/molecules21030260

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© 2016 by the authors.

Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons by Attribution (CC-BY) license (http://creativecommons.org/licenses/by/4.0/).

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UHPLC-ESI-MS/MS chromatogram of CGA and toosendanin (TSN). (A) Negative Scan m/z 100–500 of CGA; (B) MS/MS spectrum of m/z 353.10 in the negative ion mode; (C) Negative Scan m/z 100–700 of TSN; (D) MS/MS spectrum of m/z 573.10 in the negative ion mode; (E) MRM of channels ESI⁻ 353.10/191.15 and 353.10/161.10 for blank CSF sample; (F) MRM of channels ESI⁻ 353.10/191.15 and 353.10/161.10 for CSF spiked with CGA; (G) MRM of channels ESI⁻ 573.15/531.15 for blank CSF sample; (H) MRM of channels ESI⁻ 573.15/531.15 for CSF spiked with TSN. Notes: Chromatographic conditions are provided in the Experimental Section.