Figure 2

Formation of HAcAms during chlorination of the selected AAs at different contact times (DCAcAm [A] and TCAcAm [B]) and pH levels (DCAcAm and DCAN [C] and TCAcAm and TCAN [D]).
AAs molar concentration = 0.05mM, Cl2/N in model precursor (molar ratio) = 20, pH=7.5, except as noted. ‘Tyr+Ala’ represent the mixed solution of fee Tyr and free Ala ([Tyr] = [Ala] = 0.05 mM). The bars represent the standard deviation of replicate measurements (n = 3).