LI Xin, CHENG Lan, LI Xue-tao1. Determination of Content and Entrapment Efficiency of Vinorelbine Encapsulated in Liposomes[J]. Chinese journal of experimental traditional medical formulae, 2010, 16(11): 50-52.
LI Xin, CHENG Lan, LI Xue-tao1. Determination of Content and Entrapment Efficiency of Vinorelbine Encapsulated in Liposomes[J]. Chinese journal of experimental traditional medical formulae, 2010, 16(11): 50-52. DOI: 10.13422/j.cnki.syfjx.2010.11.025.
Objective:To establish a method to determine the content and entrapment efficiency of vinorelbine encapsulated in liposomes.Method:The HPLC analysis was carried out on a ELITE C18(4.6 mm × 250 mm
5 μm) column with mobile phase consisted of acetonitrile-0.06 mol.L-1 KDP buffer(38∶ 62) at a flow rate of 1.0 mL.min-1.The detection wavelength was at 215 nm and the column temperature was 30 ℃.The free drug was isolated by Gel-filtration for the entrapment efficiency determination.Result:The 1inear range of vinorelbine was 2.08 ~ 20.8 μg(r = 0.999 9).The average recovery was 98.64%(RSD 1.09%).The average entrapment efficiency was 86.83%.Conclusion:This method is simple
precise and replicable and it can be used to determine the content of total vinorelbine in liposomes and entrapment efficiency.