在准备性离心分区染色学中控制相位保留
Jan Hohlmann1, Antonia Göring1, Fabian Rhein1
1Laboratory of Plant and Process Design, Department of Biochemical and Chemical Engineering, TU Dortmund University, D-44227 Dortmund, Germany.
Journal of chromatography. A
|December 7, 2025
概括
一个新的在线工具测量了离心分区染色学 (CPC) 中的静止相保留,从而实现闭环控制. 这提高了分离性能,并减少了溶剂的使用,即使在不透明的旋转机.
科学领域:
- 分析化学 分析化学
- 染色体学 染色体学 是一种染色学.
- 分离科学 分离科学
背景情况:
- 离心分离色谱 (CPC) 依赖于液体-液体色谱原理,使用不混合的液体作为移动和静止相.
- 转子的静止阶段损失或出血会随着时间的推移而降低分离性能.
- 准确测量静止相保留对于优化CPC应用至关重要.
研究的目的:
- 开发一个在线工具,以快速和简单地测量CPC中的静止相保留.
- 通过重新剂量来实现静态相位的闭环控制,以保持一致的分离性能.
- 通过各种CPC配置和具有挑战性的分离来证明开发系统的适用性和好处.
主要方法:
- 开发了一种使用凝聚室 (CC) 和图像分析的在线测量工具.
- CC与CPC的下游连接,允许使用不透明的旋转器进行操作.
- 该系统通过静态相位减剂为闭环控制提供了在线保留测量.
主要成果:
- 开发的工具成功地在线测量了保留,从而实现了闭环控制,并保持了8小时的分离性能.
- 静止阶段的再剂量减少了约53%的特定溶剂消耗.
- 该方法在上升和下降模式,在不同的旋转体积,以及具有显著出血的系统中都被证明有效.
结论:
- 在线保留测量工具和闭环控制策略显著提高了CPC的运营稳定性和效率.
- 这种方法克服了以前方法的局限性,允许使用不透明的旋转器.
- 该系统可节省大量溶剂,并保持分离质量,特别是在严重出血的苛刻应用中.
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