化学
杂质
色谱法
碳酸氢铵
试剂
色谱分离
烷基
分辨率(逻辑)
寡核苷酸
相(物质)
功能(生物学)
高效液相色谱法
有机化学
原材料
DNA
生物化学
进化生物学
生物
人工智能
计算机科学
作者
Stilianos G. Roussis,Claus Rentel
标识
DOI:10.1016/j.jchromb.2023.123666
摘要
The use of small alkyl amines as ion pair reagents permits enhanced separation of impurities of phosphate diester oligonucleotides, which can be beneficial to quality control applications, and aid elucidation of the mechanisms of impurity formation. In general, however, separation of the individual components that comprise the majority of oligonucleotide impurities requires development of several independent chromatographic methods. Ideally, a single method capable of separating the individual components of all impurity classes would be developed. The mathematical concept of the desirability function has been explored here for its ability to determine the combination of experimental factors that result in a single, globally optimized chromatographic method. The optimized mobile phase, consisting of 1 mM propylamine (PA), 30 mM ammonium bicarbonate (ABC), and 1 mM octanoic acid (C8A), produced excellent agreement between measured and predicted peak resolution values for a set of n - 1 impurities. The relative importance of the mobile phase constituents on the mechanism of separation has been discussed. The approach holds great promise for the improved separation of components in complex chromatographic systems.
科研通智能强力驱动
Strongly Powered by AbleSci AI