After preparation, samples were placed within the stirring device inside the UPLC machine, with stirring turned on. The system was monitored by subjecting it to periodic UPLC analysis using a Waters Acquity UPLC-H Class system equipped with a photo diode array detector. All analyses were performed using a reversed-phase UPLC column (Aeris Peptide 1.7 µm XB-C18 x 2.10 mm, Phenomenex). The column temperature was kept at 35 °C, and the sample chamber was kept at 40 °C. UV absorbance was monitored at 254 nm. Additional occasional column washes performed. The eluents used in the UPLC separation consist of H2O and acetonitrile, both are UPLC grade and contain 0.1 v% Trifluoroacetic acid. Gradient and peak integration algorithm are given in the SI.