YUE Xi-dian, WANG Li, QU Gui-wu, et al. Determination of Sodium Danshensu by Nonaqueous Titration Method[J]. Chinese journal of experimental traditional medical formulae, 2013, 19(15): 137-139.
YUE Xi-dian, WANG Li, QU Gui-wu, et al. Determination of Sodium Danshensu by Nonaqueous Titration Method[J]. Chinese journal of experimental traditional medical formulae, 2013, 19(15): 137-139. DOI: 10.11653/syfj2013150137.
Objective: To establish a non-aqueous titration method to determine the content of sodium danshensu. Method: Non-aqueous titration method was performed with acetic acid and acetic anhydride (1:1.5) as the solvent and crystal violet as indicator. The sodium danshensu solution was titrated with 0.1 mol·L-1 perchloric acid solution. The end point was decided by potentiometric method and indicator method. Result: The results of non-aqueous titration were in agreement with the results of HPLC. Conclusion: The non-aqueous titration method was accurate
reliable and precise
and it can be used to determine the content of sodium danshensu.