WU Jin-jin, ZHU Yu-qing, GE Wei-hong, et al. Study on Establishing Method to Deternine APPS Liposome Entrapment Efficiency[J]. Chinese journal of experimental traditional medical formulae, 2011, 17(6): 20-23.
WU Jin-jin, ZHU Yu-qing, GE Wei-hong, et al. Study on Establishing Method to Deternine APPS Liposome Entrapment Efficiency[J]. Chinese journal of experimental traditional medical formulae, 2011, 17(6): 20-23.DOI:
Objective: The method was established to determine the entrapment efficiency for the APPS liposome. Method: Anion exchange resin was used to separate the liposome and free APPS; UV-visible spectrophotometry was used to determine the content of APPS
and liposome encapsulation efficiency was calculated. Result: The method established was as follows: the anion-exchange resin was used with 1.0 mol ·L-1NaCl as eluent; the free APPS recovery was 99.21%
liposome recovery was 0.07% with the linear range of 11.66-58.29 mg·L-1(r=0.999 4). The intra- and inter-day precisions (RSD) could meet the requirements (within 2.0%); the average recovery was 99.28%
RSD was 0.66%. The encapsulation efficiency of APPS liposome was 70.16% on average. Conclusion: This method is simple and feasible
and can determine the entrapment efficiency for the APPS liposome.