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    • 3. 发明公开
    • METHOD FOR DETECTING DISSOLUTION RATE OF PREPARATION CONTAINING COLLOIDAL BISMUTH PECTIN
    • 检测含胶体铋皮肤素制剂溶出率的方法
    • EP3315946A1
    • 2018-05-02
    • EP16813640.6
    • 2016-05-27
    • Shanxi Zhendong Ante Biopharmaceutical Co. Ltd.
    • LI, AnpingCUI, FengZHU, PingQIN, ZhengguoZHENG, TaiWU, Yuexia
    • G01N21/33G01N21/78
    • A method for detecting a dissolution rate of a preparation containing colloidal bismuth pectin includes steps of: according to " Pharmacopoeia of the People's Republic of China, 2010 Edition, Volume 2, Appendix XC", dispersing the preparation containing the colloidal bismuth pectin into dissolution medium, and directly obtaining dissolution liquid; adding a protonic acid dissociation agent into the dissolution liquid until a hydrogen ion concentration reaches 0.8-1.2mol/L; centrifuging for separating a supernatant; coloring the supernatant by adding a chromogen solution of citric acid or ascorbic acid and potassium iodide to obtain a test solution; calculating a dissolution amount, which is accounted by bismuth, of the colloidal bismuth pectin with a spectrophotometry method. The method of the present invention well detects dissolution curves and rates of the colloidal bismuth pectin in the preparation thereof, satisfying quality control requirements.
    • 检测含胶体铋果胶制剂溶出度的方法包括:按照“中华人民共和国药典2010年版2卷附录XC”将含有胶体铋果胶的制剂分散到溶出介质 ,并直接获得溶解液; 向溶解液中加入质子酸解离剂,直至氢离子浓度达到0.8-1.2mol / L; 离心分离上清液; 通过加入柠檬酸或抗坏血酸和碘化钾的色原溶液使上清液着色以获得测试溶液; 利用分光光度法计算胶态铋果胶中溶解量,其由铋计算。 本发明的方法很好地检测了胶体铋果胶在其制备过程中的溶解曲线和速率,满足了质量控制的要求。