PuSH - Publikationsserver des Helmholtz Zentrums München: Fragmentation of deuterated rhodamine B derivates by laser and collisional activation in an FT-ICR mass spectrometer.

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Peters, J.* ; Clemen, M.* ; Grotemeyer, J.*

Fragmentation of deuterated rhodamine B derivates by laser and collisional activation in an FT-ICR mass spectrometer.

Anal. Bioanal. Chem. 405, 7061-9 (2013)

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Open Access Green möglich sobald Postprint bei der ZB eingereicht worden ist.

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Xanthene dyes such as rhodamine B undergo an interesting mass-spectrometric fragmentation reaction that eliminates small neutral alkanes such as propane. This fragmentation reaction has been investigated in a Fourier transform ion cyclotron mass spectrometer by means of laser photodissociation with visible light as well as by collision-induced dissociation. Different isotopically labeled decarboxyrhodamine B compounds were used to investigate the fragmentation mechanism. The results support a concerted mechanism for the formation of the alkanes instead of a two-step radical mechanism.

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