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相关概念视频

Precipitation Processes01:12

Precipitation Processes

434
The experimental conditions in a gravimetric analysis should be optimized to maximize the particle size and purity of the obtained precipitate. Ideally, the concentration of the precipitating reagent should be low with effective stirring to maintain low relative supersaturation for the growth of large crystals. In homogeneous precipitation, the precipitant is slowly generated by a chemical reaction in the solution to avoid local reagent excesses. For example, urea decomposes gradually to...
434

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相关实验视频

Updated: Jun 14, 2025

Additive Manufacturing of Functionally Graded Ceramic Materials by Stereolithography
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材料节约方法开发用于确定液体与固体的比率,用于湿颗粒加工过程的开发.

Catarina Luz1, Ricardo Sousa2, João F Pinto3

  • 1Oral Drug Product Development, Hovione Farmaciência S.A., Lisbon, Portugal; Research Institute for Medicines (iMed.Ulisboa), Faculty of Pharmacy, Universidade de Lisboa 1649-003 Lisboa, Portugal.

International journal of pharmaceutics
|June 8, 2025
PubMed
概括
此摘要是机器生成的。

这项研究评估了IKA和FT4风湿计作为混合器扭矩风湿计 (MTR) 的替代品,用于确定湿颗粒中液体与固体 (L/S) 的比率. 这两种仪器都显示出前景,FT4在高剪切和双螺杆湿颗粒加工过程中被证明是最可靠的.

关键词:
这是一个FT4风力计.高剪切湿颗粒制剂的高剪切湿颗粒制剂伊卡神奇植物 魔法植物液体与固体的比率是什么混合器扭矩转矩计是混合器的扭矩计.双螺旋湿颗粒制造的双螺旋制造

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科学领域:

  • 制药技术 制药技术 制药技术
  • 粉末类风病学 粉末类风病学
  • 颗粒化科学 颗粒化科学

背景情况:

  • 液体与固体 (L/S) 的比率对于湿颗粒处理中的颗粒质量至关重要.
  • 混合器扭矩风力计 (MTR) 是确定L/S比率的标准.
  • 节约材料的方法是必要的,以实现高效的颗粒开发.

研究的目的:

  • 评估IKA魔力工厂和弗里曼FT4粉末类风湿仪作为MTR替代品.
  • 开发一种材料节约方法来确定L/S比率.
  • 在高剪切湿颗粒处理 (HSWG) 和双螺杆湿颗粒处理 (TSWG) 过程中比较风力计的性能.

主要方法:

  • 测试了三种配方,使用不同的辅助剂比例和水作为颗粒液.
  • 将IKA和FT4风力计的扭矩数据与MTR数据进行比较.
  • 分析了FT4的"总能量"数据和IKA.的扭矩概况.

主要成果:

  • IKA和FT4都与MTR与HSWG L/S比率的确定有很好的相关性.
  • 对于TSWG工艺,FT4和MTR显示了类似的L/S比.
  • 在使用小样本大小 (4g) 的HSWG和TSWG中,FT4在预测最佳L/S比率方面表现出高可靠性.

结论:

  • IKA和FT4是MTR的可行的替代方案,用于在HSWG中确定L/S比率.
  • 对于TSWG L/S比率的确定,FT4是首选的选择.
  • FT4风力计是最可靠的工具,可以在HSWG和TSWG中以最少的材料优化L / S比.
  • 尽管IKA需要更多的材料,但它提供了生产规模的能力.