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. 2017 Oct 23;22(10):1798. doi: 10.3390/molecules22101798

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© 2017 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 (CC BY) license (http://creativecommons.org/licenses/by/4.0/).

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Liquid chromatography coupled tandem mass spectrometry (LC/MS/MS) spectra and predicted b- and y-ion MS/MS fragment ion series of bombesin-OS and bombesin-PE. (a) Annotated tandem mass spectrometry (MS/MS) fragmentation spectrum of bombesin-OS; (b) Predicted singly and doubly charged b- and y-ions arising from MS/MS fragmentation of bombesin-OS. The observed b- and y-ions are showed in red and blue, respectively; (c) Annotated MS/MS fragmentation spectrum of bombesin-PE; (d) Predicted singly and doubly charged b- and y-ions arising from MS/MS fragmentation of bombesin-PE. The observed b- and y-ions are showed in red and blue, respectively.

Liquid chromatography coupled tandem mass spectrometry (LC/MS/MS) spectra and predicted b- and y-ion MS/MS fragment ion series of bombesin-OS and bombesin-PE. (a) Annotated tandem mass spectrometry (MS/MS) fragmentation spectrum of bombesin-OS; (b) Predicted singly and doubly charged b- and y-ions arising from MS/MS fragmentation of bombesin-OS. The observed b- and y-ions are showed in red and blue, respectively; (c) Annotated MS/MS fragmentation spectrum of bombesin-PE; (d) Predicted singly and doubly charged b- and y-ions arising from MS/MS fragmentation of bombesin-PE. The observed b- and y-ions are showed in red and blue, respectively.