For kinetic analysis of reactions, a very rapid chromatographic method was used in order to minimize the delay between successive time points. Gradient conditions are in the table below. (Solvent A is water with 0.1% v/v formic acid; Solvent B is acetonitrile with 0.1% v/v formic acid.) -catalyst, -carrot} reactions for each tissue were specified. For example, for derivatized triazoles, the correlation between feature intensities across the panel and {1, 0, 0, 0} was computed. For underivatized internal alkynes, correlation with {0, 0, 1, 0} was computed.