To investigate the effect of HA content in the reaction system, a total of 2 mL of AgNO3 solution (50 mM) was added into 18 mL of HA solution with varied concentrations (5 mM, 2.5 mM, 1 mM, 0.5 mM and 0.25 mM, respectively)
To investigate the effect of HA content in the reaction system, atotal of 2 mL of AgNO3 solution (50 mM) was added into 18 mL of HAsolution with varied concentrations (5 mM, 2.5 mM, 1 mM, 0.5 mMand 0.25 mM, respectively)