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
The main technical problems of nickel powder for multiplayer ceramic capacitors are particle size controlling, the agglomeration and tap density. Ultrafine nickel powders with submicron size and spherical shape were s...The main technical problems of nickel powder for multiplayer ceramic capacitors are particle size controlling, the agglomeration and tap density. Ultrafine nickel powders with submicron size and spherical shape were synthesized by the hydrazine reduction of nickel sulfate in ethanol-water solvent. The effects of reaction temperature, nucleator and flow rate of nickel sulfate solution on nickel powders properties were investigated. The nickel particles synthesized were characterized by SEM and TGA. The results show that the average particle size changes from 0.1 to 0.7 μm by adjusting reaction temperature (53- 73 ℃) and flow rate of nickel sulfate solution (50- 100 mL/min). Moreover, temperature below 60 ℃ and appropriate flow rate of nickel sulfate solution (85 mL/min) are in favor of obtaining particles with high tap density (>3.0 g/cm3). In addition, the introduction of nucleator is useful to obtaining particles with narrow size distribution.展开更多
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Project(50474047) supported by the National Natural Science Foundation of China
文摘The main technical problems of nickel powder for multiplayer ceramic capacitors are particle size controlling, the agglomeration and tap density. Ultrafine nickel powders with submicron size and spherical shape were synthesized by the hydrazine reduction of nickel sulfate in ethanol-water solvent. The effects of reaction temperature, nucleator and flow rate of nickel sulfate solution on nickel powders properties were investigated. The nickel particles synthesized were characterized by SEM and TGA. The results show that the average particle size changes from 0.1 to 0.7 μm by adjusting reaction temperature (53- 73 ℃) and flow rate of nickel sulfate solution (50- 100 mL/min). Moreover, temperature below 60 ℃ and appropriate flow rate of nickel sulfate solution (85 mL/min) are in favor of obtaining particles with high tap density (>3.0 g/cm3). In addition, the introduction of nucleator is useful to obtaining particles with narrow size distribution.
