A Photoreactor-Interfaced Mass Spectrometer: An Online Platform to Monitor Photochemical Reactions

Publication Name

Analytical Chemistry


An experimental platform is reported that allows for the online characterization of photochemical reactions by coupling a continuous flow photoreactor, equipped with LED light irradiation and a dual-tipped ESI source, directly to a mass spectrometer with electrospray ionization. The capabilities of this platform are demonstrated with two classes of photoreactions: (1) the photopolymerization of methyl methacrylate and (2) photocatalyzed alkyne insertion into a 1,2,3-benzotriazinone. The online technique provides rapid information to inform the underlying photochemical mechanism and evaluate the overall photochemistry.

Open Access Status

This publication is not available as open access

Funding Number


Funding Sponsor

Australian Research Council



Link to publisher version (DOI)