在超临界流体染色学中研究固定和涂层多糖体柱的性能和稳定性
Lei Yue1, Madeline Yeh2, John Reilly3
1Novartis Institutes for BioMedical Research, Cambridge, Massachusetts, USA.
Chirality
|November 3, 2023
概括
这项研究比较了超临界流体染色学 (SFC) 中的涂层和固定化合静止相. 固定式柱子在传统的修饰器中表现出色,而涂层柱子在其他方面表现更好,表现出不同的稳定性.
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.
- 螺旋式分离 螺旋式分离
背景情况:
- 基拉静止相 (CSP) 对于染色体学中的反体分离至关重要.
- 涂层和固定CSP都被广泛使用,但它们的比较性能各不相同.
- 超临界流体染色学 (SFC) 提供了一个有效的平台,用于奇拉分离.
研究的目的:
- 为了比较"金色四"涂层的CSP与它们的固定对应物之间的enantioseparation性能.
- 评估传统 (甲醇,异醇) 和非传统 (二甲,乙烯酸,四水) 修饰剂对CSP性能的影响.
- 评估涂层CSP在接触"禁止"溶剂时的溶剂稳定性.
主要方法:
- 使用SFC与30种种族化合物的多样化组合.
- 测试了五个不动化的CSP (Chiralpak IA-3,IB-3,IB N-3,IH-3,IJ-3) 与四个涂层的CSP (Chiralpak AD-3,OD-3,AS-3,OJ-3) 相比.
- 使用甲醇,异醇,二甲,乙烯酸乙烯和四基作为修饰剂的研究性能.
- 使用二甲,二甲基硫氧化物和四水评估涂层柱稳定性 (Chiralpak AD-H,Chiralcel OD-H).
主要成果:
- 与使用传统修饰剂涂层的Chiralcel OD-3和Chiralpak AS-3相比,固定化的Chiralpak IB N-3和IH-3显示出更高的反体分辨率.
- 涂层Chiralpak AD-3,OD-3和OJ-3的表现优于它们的固定对应物 (Chiralpak IA-3,IB-3,IJ-3).
- 与传统的修饰剂相比,非传统的修饰剂通常会降低固定柱的反抗分离能力.
- 暴露于"禁止"溶剂的涂层柱体在保留因子和分辨率上略有下降,反压力显著增加,表明降解.
结论:
- 涂层和固定CSP之间的选择至关重要,并且取决于SFC中使用的特定列和移动相调节器.
- 固定列显示了特定传统修饰器的优势,而涂层列在某些情况下显示了更广泛的应用.
- 涂层CSP的稳定性因暴露于"禁止"溶剂而受到损害,影响其长期性能,并需要仔细选择溶剂.
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