一种HPLC辅助的三元溶剂系统的数学预测方法,用于开发对逆流色谱溶剂系统的智能在线选择系统
Xu Wang1, Xiu-Mei Luan1, Jia Yang2
1School of Pharmacy, Shandong University of Traditional Chinese Medicine, Jinan 250355, PR China.
Journal of chromatography. A
|December 22, 2024
概括
本研究介绍了一种HPLC辅助的方法,用于预测天然化合物的逆流色谱 (CCC) 净化最佳溶剂系统. 开发的系统简化了溶剂选择,减少了实验的试错,以实现高效的分离.
科学领域:
- 自然产品化学 自然产品化学
- 分离科学 分离科学
- 染色体学 染色体学 是一种染色学.
背景情况:
- 反流色谱 (CCC) 对于净化生物活性天然化合物至关重要.
- 溶剂系统的选择是CCC中一个关键但耗时的步骤.
- 现有的方法通常涉及广泛的经验查.
研究的目的:
- 为选择CCC溶剂系统开发HPLC辅助的数学预测方法.
- 设计一个智能在线系统,以简化和快速选择溶剂.
- 使用CCC优化生物活性天然化合物的净化.
主要方法:
- 使用HPLC分析 (B%) 对n-hexane/酒精溶剂/水 (HAWat) 和乙烯酸/n-butanol/水 (EBuWat) 的量化溶剂系统适用性.
- 在不同的色谱列中分析了对数分区系数 (log K) 和酒精溶剂比率之间的关系.
- 开发了预测功能,将最佳CCC溶剂组成与模板分子B%相关联.
主要成果:
- HAWat系统适用于B%>85%的化合物;EBuWat系统适用于B%>55%的化合物.
- 确定并验证了HAWat的二次函数和通用EBuWat系统 (8.2:1.8:10).
- 设计了一个智能CCC在线选择系统,用于实时选择溶剂和自动分离.
结论:
- 通过HPLC辅助的数学预测方法,可以快速轻松地选择合适的CCC溶剂系统.
- 智能在线系统消除了代的震动瓶实验,促进了自动样本分离.
- 这种方法简化了CCC方法的开发,并支持仪器仪表的升级.
相关概念视频
01:05High-Performance Liquid Chromatography: Elution Process
423
In High-Performance Liquid Chromatography (HPLC), the elution process is critical to the separation of analytes and the quality of chromatographic results. Elution describes how compounds move through the column and separate based on their interactions with the mobile and stationary phases. This process determines the resolution, peak shape, and retention times in the chromatogram, which are essential for identifying and quantifying components in complex mixtures. Understanding the elution...
423
01:11High-Performance Liquid Chromatography: Introduction
1.5K
High-performance liquid chromatography(HPLC), formerly referred to as High-pressure liquid chromatography, is a powerful technique used to separate, identify, and quantify components in complex mixtures. The term "high pressure" refers to using high pressure to push the liquid mobile phase through the tightly packed columns.
In HPLC, two phases play a critical role in the separation process:
In HPLC, two phases play a critical role in the separation process:
1.5K
00:57High-Performance Liquid Chromatography: Instrumentation
1.4K
High-performance liquid chromatography, or HPLC, is an analytical technique that separates liquid samples under high pressures. An HPLC instrument consists of glass bottles for storing solvents called mobile phase reservoirs. HPLC-grade solvents are used to maintain high purity, and the dissolved gases are removed using a degasser, such as a vacuum pumping system or sparging with helium. The solvents are then pumped into the analytical column using a screw-driven syringe or reciprocating pumps.
1.4K
01:15High-Performance Liquid Chromatography: Types of Detectors
470
The role of the detectors in High-Performance Liquid Chromatography (HPLC) is to analyze the solutes as they exit from the chromatographic column. The detector recognizes the solute's property and generates corresponding electrical signals, which are converted into a readable graph of the detector's response versus elution time called a chromatogram at the computer. There are several types of HPLC detectors, each with its own advantages and limitations, depending on the analyte...
470
01:15Optimizing Chromatographic Separations
342
Optimizing chromatographic separations is crucial for obtaining clean separations in a minimum amount of time. Optimization is required for several factors, including kinetic effects related to band broadening, plate height, capacity factor, and separation factor.
Band broadening refers to spreading solute bands as they travel through the column. This broadening can impact resolution. Plate height (H) represents the length required for one theoretical plate. A lower plate height corresponds to...
Band broadening refers to spreading solute bands as they travel through the column. This broadening can impact resolution. Plate height (H) represents the length required for one theoretical plate. A lower plate height corresponds to...
342
01:10Chromatography: Introduction
3.8K
Chromatography is a technique used to separate compounds based on differences of partitioning between two phases, the stationary phase and the mobile phase.
The phase in which the compounds linger or on which the compounds adsorb is called the stationary phase, whereas the mobile phase is the solvent that carries the solutes to be analyzed. In traditional column chromatography, the mixture flows through the stationary phase, and the compounds partition between the stationary and mobile phases...
The phase in which the compounds linger or on which the compounds adsorb is called the stationary phase, whereas the mobile phase is the solvent that carries the solutes to be analyzed. In traditional column chromatography, the mixture flows through the stationary phase, and the compounds partition between the stationary and mobile phases...
3.8K