This can be seen most clearly if the brown curve for etidronic acid (5 µmol g -1 ) is compared to the violet curve for sucrose (4 µmol g -1 ). Both curves have a similar timing of Figure : Left: Heat Flow curves of three retarders (racemic tartaric acid, etidronic acid, and sucrose) at different concentrations (given in mmol g -1 ). Some intermediate dosages are missing for racemic tartaric acid because of the low retarding power. It is important to note that only in the case of the reference curve can the algorithm at low prominence values detect to maxima.