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. Author manuscript; available in PMC: 2019 May 23.
Published in final edited form as: Angew Chem Int Ed Engl. 2018 Dec 20;58(5):1334–1339. doi: 10.1002/anie.201810522

Figure 3.

Figure 3

Radical generation at 77 K as a function of UV-irradiation time for frozen mixtures of 0.7 M TriPA (red curve), d9-TriPA (black curve) and PA (blue curve) with 2 M [U-13C,d7]-D-glucose dissolved in GW55. Measurements were performed on a single 4.0±0.2 µL frozen bead immersed in liquid nitrogen (A). Room temperature UV-vis absorption measurements for the same sample solutions (left y-scale); the light blue coloured area represents the spectral irradiance (right y-scale) of the UV-source (Dymax, BlueWave 75) at maximum power (19 W/cm2) used to photo-generate the radicals (B).