整合基于在线采样的拉曼光谱平台,用于监测化学反应过程
Jin Wang1, Wuye Yang1, Meng Su1
1School of Chemistry and Molecular Engineering, Shanghai Key Laboratory of Functional Materials Chemistry, Research Centre of Analysis and Test, East China University of Science and Technology, Shanghai 200237, China. yipingdu@ecust.edu.cn.
Analytical methods : advancing methods and applications
|November 25, 2024
概括
本研究介绍了一种具有成本效益的拉曼光谱平台,用于实时监控制药过程. 该系统使用聚醇 (PFA) 管进行在线采样,成功监测阿司匹林合成.
科学领域:
- 分析化学 分析化学
- 化学工程是化学工程的重要组成部分.
- 频谱学是一种光谱学.
背景情况:
- 制药合成需要精确控制反应时间,以优化产量并最大限度地减少副产品.
- 监测化学反应的传统方法可能是昂贵和复杂的,阻碍了实时过程控制.
研究的目的:
- 开发和验证一个具有成本效益的在线拉曼光谱平台,用于实时监测药物合成.
- 为了利用聚甲氧 (PFA) 管道作为一个集成的流量单元来简化和经济的拉曼光谱采集.
主要方法:
- 整合了一个在线采样系统与拉曼光谱学,使用PFA管用于溶液传输和光谱收集.
- 使用环静电进行自动取样和返回反应溶液,通过定制软件控制.
- 应用了内部标准方法,使用PFA管峰 (731厘米−1) 和乙酸产品峰 (1606厘米−1) 进行定量分析.
主要成果:
- 通过使用开发的拉曼光谱平台,成功地实时监测了阿司匹林合成反应.
- 证明了使用PFA管作为流细胞的可行性,降低了设备成本,并消除了对现场探针的需求.
- 内部标准方法有效地将光谱振荡和基线偏移降到最低,从而能够准确地确定终点.
结论:
- 开发的在线拉曼光谱平台与PFA管道是一个可行的和具有成本效益的解决方案,用于实时监测药物合成.
- 这种方法为在各种制药制造环境中实施实时流程监控提供了有价值的研究基础.
更多相关视频
相关概念视频
Raman Spectroscopy Instrumentation: Overview
296
A conventional Raman spectrophotometer includes a laser source, a sample holding system, a wavelength selector, and a detector.
The monochromatic laser source, typically using visible or near-infrared radiation, generates a highly focused beam of light. This light interacts with the molecules of the sample, scattering some of the light. Liquid and gaseous samples are usually tested in ordinary glass capillaries, while solids can be analyzed as powders packed in capillaries or as potassium...
The monochromatic laser source, typically using visible or near-infrared radiation, generates a highly focused beam of light. This light interacts with the molecules of the sample, scattering some of the light. Liquid and gaseous samples are usually tested in ordinary glass capillaries, while solids can be analyzed as powders packed in capillaries or as potassium...
296
Raman Spectroscopy: Overview
309
The underlying principle of Raman spectroscopy is based on the interaction between light and matter, specifically molecules' inelastic scattering of photons. When a monochromatic beam of light, typically from a laser source, interacts with a sample, most scattered light has the same frequency as the incident light. This is known as Rayleigh scattering.
However, a small fraction of the scattered light exhibits a frequency shift due to the exchange of energy between the incident photons and...
However, a small fraction of the scattered light exhibits a frequency shift due to the exchange of energy between the incident photons and...
309
Measuring Reaction Rates
24.6K
Polarimetry finds application in chemical kinetics to measure the concentration and reaction kinetics of optically active substances during a chemical reaction. Optically active substances have the capability of rotating the plane of polarization of linearly polarized light passing through them—a feature called optical rotation. Optical activity is attributed to the molecular structure of substances. Normal monochromatic light is unpolarized and possesses oscillations of the electrical...
24.6K


