In vitro testing of biologically relevant interferents. Current vs timetraces, cyclic voltammograms, and false color plots for A) 1 µM adenosine, B) 1 µM ATP, C) 1 µM histamine, D) 1 µM hydrogen peroxide, E) pH 7.3 shift, F) pH 7.5 shift. Interferents are rejected by the algorithm due to smax occurring before pmax and an interferent Sp,/Pp ratio below the minimum for adenosine.