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Online measurement of photoisomerisation efficiency in solution using ion mobility mass spectrometry

Abstract

The photoisomerisation of charged molecules in solution is probed directly using ion mobility mass spectrometry with electrospray ionisation. The technique is demonstrated using a prototype azoheteroarene cation in methanol. By scanning the wavelength of the excitation light while monitoring the photoisomer intensity one can generate a photoisomerisation action spectrum, which, when compared with a conventional absorption spectrum, allows the relative photoisomerisation quantum yield to be determined across a range of wavelengths.

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Publication details

The article was received on 07 Mar 2017, accepted on 13 May 2017 and first published on 17 May 2017


Article type: Communication
DOI: 10.1039/C7AN00398F
Citation: Analyst, 2017, Accepted Manuscript
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    Online measurement of photoisomerisation efficiency in solution using ion mobility mass spectrometry

    J. Bull, E. Carrascosa, M. Scholz, N. Coughlan and E. Bieske, Analyst, 2017, Accepted Manuscript , DOI: 10.1039/C7AN00398F

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