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具有pH独立的表面电荷的硫化功能化多多巴胺涂层,用于优化毛细血管电泳分离
Wenwen Long1, Mingyue You1, Jieli Li1
1School of Pharmacy, Southwest Medical University, Luzhou 646000, China.
Molecules (Basel, Switzerland)
|April 13, 2024
概括
一种新的硫酸聚多巴胺涂层在毛细管电泳中提供了pH独立的电流. 这一进步提高了各种分析物的分离效率和可重复性,包括奇拉药物.
科学领域:
- 分析化学 分析化学
- 分离科学 分离科学
- 材料科学 材料科学 材料科学
背景情况:
- 实现pH独立的电流 (EOF) 对于可再生的毛细管电泳 (CE) 分离至关重要.
- 现有的方法往往难以在广泛的pH范围内保持稳定的EOF,从而限制了分析性能.
- 控制EOF大小对于优化分离效率和分析时间至关重要.
研究的目的:
- 开发一种新的毛细管修饰方法,用于在CE中独立于pH值的可重复性阴极EOF.
- 为了研究使用硫化周期性诱导聚多巴胺 (SPD) 涂料用于毛细血管内部表面的修饰.
- 评估SPD涂层毛细血管在提高CE分离效率和可重复性方面的性能.
主要方法:
- 通过周期性诱导聚多巴胺 (PDA-SP) 涂层的后硫化制造SPD涂层的毛细血管.
- 使用各种分析技术来确定SPD涂层的特性,以确认固定和硫化.
- 修改毛细管的EOF移动性,pH依赖性和西拉诺尔组掩盖能力的评估.
主要成果:
- 证实了SPD涂层与大量硫酸组接种的成功固定.
- 用SPD涂层的毛细血管有效地掩盖了西兰醇组,并表现出强大的,高强度的阴极EOF,基本上独立于pH值.
- 优化的SPD列显示了芳香酸,核酸的高效分离,以及种族药物的快速奇拉分析.
结论:
- 开发的SPD涂层方法提供了一种可靠的方法,可以在CE中实现稳定,pH独立的EOF.
- 用SPD涂层的毛细血管显著提高了分离性能,可重复性和分析效率.
- 这些修改后的毛细血管提供了长寿命和出色的可重复性,使它们适合常规分析应用.
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