The sample preparation of samples conlaining bovine serum albumin（BSA）,e.g..as used in transdermal Franz diffusion cell（FDC） solutions,was evaluated using an analytical qualily-by-design（QbD）approach.Traditional...The sample preparation of samples conlaining bovine serum albumin（BSA）,e.g..as used in transdermal Franz diffusion cell（FDC） solutions,was evaluated using an analytical qualily-by-design（QbD）approach.Traditional precipitation of BSA by adding an equal volume of organic solvent,often successfully used with conventional HPLC-PDA,was found insufficiently robust when novel fused-core HPLC and/or UPLC-MS methods were used.In this study,three factors（acetonitrile（%）.formic acid（%） and boiling time（min）） were included in the experimental design to determine an optimal and more suitable sample treatment of BSAcontaining FDC solutions.Using a QbD and Derringer desirability（D） approach,combining BSA loss,dilution factor and variability,we constructed an optimal working space with the edge of failure defined as D〈0.9.The design space is modelled and is confirmed to have an ACN range of 83 ± 3% and FA content of 1 ±0.25%.展开更多
目的基于质量源于设计(Qb D)理念对祛寒逐风颗粒的制备工艺进行研究,并对颗粒剂进行物理指纹图谱评价。方法以干浸膏粉为主药,选取成型率、休止角、吸湿率、溶化率为评价指标,采用Box-Behnken设计-响应面法优选工艺参数,运用D-最优混料...目的基于质量源于设计(Qb D)理念对祛寒逐风颗粒的制备工艺进行研究,并对颗粒剂进行物理指纹图谱评价。方法以干浸膏粉为主药,选取成型率、休止角、吸湿率、溶化率为评价指标,采用Box-Behnken设计-响应面法优选工艺参数,运用D-最优混料设计优选辅料种类。以二级物理指标相对均齐度指数、松密度、振实密度、水分、吸湿率、豪斯纳比、休止角为评价指标,建立物理指纹图谱,评价不同批次颗粒剂质量的一致性。结果祛寒逐风颗粒的制备工艺为以可溶性淀粉-糊精(3∶2)为辅料,药辅比1∶2,30 m L 80%乙醇为润湿剂。5批颗粒的物理指纹图谱相似度大于0.99。结论祛寒逐风颗粒制备工艺稳定可行,物理指纹图谱科学合理,为中药制剂制备工艺研究提供新的方向。展开更多
Coptis chinensis(Huanglian) is a commonly used traditional Chinese medicine(TCM) herb and alkaloids are the most important chemical constituents in it. In the present study, an isocratic reverse phase high performance...Coptis chinensis(Huanglian) is a commonly used traditional Chinese medicine(TCM) herb and alkaloids are the most important chemical constituents in it. In the present study, an isocratic reverse phase high performance liquid chromatography(RP-HPLC) method allowing the separation of six alkaloids in Huanglian was for the first time developed under the quality by design(Qb D) principles. First, five chromatographic parameters were identified to construct a Plackett-Burman experimental design. The critical resolution, analysis time, and peak width were responses modeled by multivariate linear regression. The results showed that the percentage of acetonitrile, concentration of sodium dodecyl sulfate, and concentration of potassium phosphate monobasic were statistically significant parameters(P < 0.05). Then, the Box-Behnken experimental design was applied to further evaluate the interactions between the three parameters on selected responses. Full quadratic models were built and used to establish the analytical design space. Moreover, the reliability of design space was estimated by the Bayesian posterior predictive distribution. The optimal separation was predicted at 40% acetonitrile, 1.7 g·m L-1of sodium dodecyl sulfate and 0.03 mol·m L-1 of potassium phosphate monobasic. Finally, the accuracy profile methodology was used to validate the established HPLC method. The results demonstrated that the Qb D concept could be efficiently used to develop a robust RP-HPLC analytical method for Huanglian.展开更多
基金the Special Research Fund of Ghent University(BOF 01D23812 to Lien Taevernier and BOF O1J22510 to Evelien Wynendaele and Professor Bart De Spiegeleer)the Institute for the Promotion of Innovation through Science and Technology in Flanders(IWT 101529 to Matthias D'Hondt)for their financial funding
文摘The sample preparation of samples conlaining bovine serum albumin（BSA）,e.g..as used in transdermal Franz diffusion cell（FDC） solutions,was evaluated using an analytical qualily-by-design（QbD）approach.Traditional precipitation of BSA by adding an equal volume of organic solvent,often successfully used with conventional HPLC-PDA,was found insufficiently robust when novel fused-core HPLC and/or UPLC-MS methods were used.In this study,three factors（acetonitrile（%）.formic acid（%） and boiling time（min）） were included in the experimental design to determine an optimal and more suitable sample treatment of BSAcontaining FDC solutions.Using a QbD and Derringer desirability（D） approach,combining BSA loss,dilution factor and variability,we constructed an optimal working space with the edge of failure defined as D〈0.9.The design space is modelled and is confirmed to have an ACN range of 83 ± 3% and FA content of 1 ±0.25%.
文摘目的基于质量源于设计(Qb D)理念对祛寒逐风颗粒的制备工艺进行研究,并对颗粒剂进行物理指纹图谱评价。方法以干浸膏粉为主药,选取成型率、休止角、吸湿率、溶化率为评价指标,采用Box-Behnken设计-响应面法优选工艺参数,运用D-最优混料设计优选辅料种类。以二级物理指标相对均齐度指数、松密度、振实密度、水分、吸湿率、豪斯纳比、休止角为评价指标,建立物理指纹图谱,评价不同批次颗粒剂质量的一致性。结果祛寒逐风颗粒的制备工艺为以可溶性淀粉-糊精(3∶2)为辅料,药辅比1∶2,30 m L 80%乙醇为润湿剂。5批颗粒的物理指纹图谱相似度大于0.99。结论祛寒逐风颗粒制备工艺稳定可行,物理指纹图谱科学合理,为中药制剂制备工艺研究提供新的方向。
基金supported by National Natural Science Foundation of China(No.81403112)Beijing Natural Science Foundation(No.7154217)+1 种基金Scientific Research Program of Beijing University of Chinese Medicine(No.2015-JYB-XS104)Special Program for Beijing Key Laboratory of Chinese Medicine Manufacturing Process Control and Quality Evaluation(No.Z151100001615065)
文摘Coptis chinensis(Huanglian) is a commonly used traditional Chinese medicine(TCM) herb and alkaloids are the most important chemical constituents in it. In the present study, an isocratic reverse phase high performance liquid chromatography(RP-HPLC) method allowing the separation of six alkaloids in Huanglian was for the first time developed under the quality by design(Qb D) principles. First, five chromatographic parameters were identified to construct a Plackett-Burman experimental design. The critical resolution, analysis time, and peak width were responses modeled by multivariate linear regression. The results showed that the percentage of acetonitrile, concentration of sodium dodecyl sulfate, and concentration of potassium phosphate monobasic were statistically significant parameters(P < 0.05). Then, the Box-Behnken experimental design was applied to further evaluate the interactions between the three parameters on selected responses. Full quadratic models were built and used to establish the analytical design space. Moreover, the reliability of design space was estimated by the Bayesian posterior predictive distribution. The optimal separation was predicted at 40% acetonitrile, 1.7 g·m L-1of sodium dodecyl sulfate and 0.03 mol·m L-1 of potassium phosphate monobasic. Finally, the accuracy profile methodology was used to validate the established HPLC method. The results demonstrated that the Qb D concept could be efficiently used to develop a robust RP-HPLC analytical method for Huanglian.
