369037.fig.004a
(a)
369037.fig.004b
(b)
Figure 4: (a) HPLC chromatogram of a solution obtained by extraction with methanol of an irradiated mixture mesotrione/Kaolinite at using a gradient program (see Section 2). (b) Mass spectrum of product P1. [Mesotrione] 5.2 µmol g−1. Irradiation was performed in a Sunlight simulator.