在离子配对染色学和全面的HILIC × IP-RPLC中研究寡核酸的全面突破行为
Megane K Aebischer1, Yusraa Abdurahman1, Sabine Heinisch2
1School of Pharmaceutical Sciences, University of Geneva, CMU - Rue Michel Servet 1, 1211 Geneva 4, Switzerland; Institute of Pharmaceutical Sciences of Western Switzerland, University of Geneva, CMU - Rue Michel Servet 1, 1211 Geneva 4, Switzerland.
Journal of chromatography. A
|November 1, 2025
概括
寡核酸 (ON) 分析在2D-LC.中从全突破 (TB) 中获益. 这项研究在HILIC × IP-RPLC中证明了结核病,使ON混合物的敏感杂质分析成为可能.
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.
- 氧核酸治疗药物 治疗药物
背景情况:
- 寡核酸 (ON) 是关键的治疗剂,需要强大的分析方法来控制质量.
- 离子配对逆相液态色谱 (IP-RPLC) 是ON杂质分析的标准,但一维方法面临着分辨率挑战.
- 全面的二维液态色谱 (2D-LC) 增强了杂质分析,但面临着尺寸之间的溶剂不兼容问题.
研究的目的:
- 通过使用2D-LC.来研究在寡核酸分离中完全突破 (TB) 的现象.
- 通过利用结核病行为,建立一个优化用于ON杂质分析的HILIC × IP-RPLC方法.
- 在ON分析中克服注射量限制和溶剂不兼容性挑战.
主要方法:
- 在IP-RPLC中证明结核病在Oligonucleotides (ONs) 中的行为.
- 开发和优化一个二维的HILIC × IP-RPLC方法.
- 深入调查影响突破的1D HILIC 分数和2D IP-RPLC 条件.
主要成果:
- 寡核酸在IP-RPLC中表现出全面突破 (TB) 行为,这是以前在小分子和中观察到的现象.
- 通过HILIC × IP-RPLC方法,成功地利用TB进行ON分析,克服了常见的溶剂不兼容问题.
- 由于离子配对剂和残留盐,理解ONs中的TB是复杂的,但优化产生了一种敏感的方法.
结论:
- 总突破 (TB) 是一种可行的策略,用于增强2D-LC中的寡核酸分析,特别是在HILIC × IP-RPLC配置中.
- 开发的方法允许通过利用TB.通过利用TB.通过对寡核酸混合物的敏感杂质分析进行分析.
- 这种方法解决了ON分析的关键挑战,改善了治疗开发的质量控制.
相关概念视频
Ion-Exchange Chromatography
1.8K
Ion-exchange chromatography, or IEC, is a technique for separating ions based on their affinity for the stationary phase. The stationary phase is a cross-linked polymer resin with covalently attached ionic functional groups. The functional groups can be either positively charged (cation exchangers) or negatively charged (anion exchangers). A cation exchanger consists of a polymeric anion and active cations, while an anion exchanger is a polymeric cation with active anions. The choice of...
1.8K
High-Performance Liquid Chromatography: Introduction
3.3K
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:
3.3K
High-Performance Liquid Chromatography: Elution Process
1.4K
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...
1.4K
High-Performance Liquid Chromatography: Instrumentation
2.8K
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.
2.8K
Types Of Column Chromatography
13.2K
The stability and compatibility of column material with samples are crucial for efficient purification in chromatographic techniques. Various operating parameters such as pH, temperature, or solvent affect the packing of the column material, thereby determining the purification efficiency. The choice of column material also plays an essential role in deciding the operating parameters and can be modified based on the proteins that need to be purified.
Gel Filtration Chromatography
When the...
Gel Filtration Chromatography
When the...
13.2K


