新型PEI/Zein核心外复合材料作为混合模式静止阶段用于高性能液体色谱
Qing Shen1, Cong Tang1, Xiaomeng Xu1
1Key Laboratory of Chemistry of Northwestern Plant Resources and Key Laboratory for Natural Medicine of Gansu Province, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, PR China; University of Chinese Academy of Sciences, Beijing 100049, PR China.
Journal of chromatography. A
|July 18, 2024
概括
一种新型的聚乙烯胺 (PEI) /zein联合修改的静态相 (PEI/Zein@SiO2) 能够很好地分离出水性和疏水性化合物. 这种混合模式色谱为复杂样品提供了更好的选择性.
科学领域:
- 材料科学 材料科学 材料科学
- 分析化学 分析化学
- 染色体学 染色体学 是一种染色学.
背景情况:
- 开发先进的静止相对于有效的色谱分离至关重要.
- 现有的基于二氧化的静止相可以表现出强烈的吸附问题.
- 复合材料提供可调节的特性,以提高分离性能.
研究的目的:
- 准备和表征一种新的聚乙烯胺 (PEI) /zein联合修改的核心外静止相 (PEI/Zein@SiO2).
- 为了评估PEI/Zein@SiO2柱的分离能力,对水友和疏水化合物进行分离.
- 研究这种新材料在色谱应用中的潜力.
主要方法:
- 制备PEI/zein联合修改的纳米颗粒.
- 使用各种技术来确定形态和表面积的静止阶段的表征.
- 使用混合模式染色学对水友性 (核化物,基,抗生素) 和水性 (黄) 化合物的染色学分析.
- 研究分离性能和保留机制.
主要成果:
- 在PEI/Zein@SiO2静止阶段,在水友互动模式下,核酸,基和抗生素的有效分离得到了证明.
- 由于的疏水性质,在逆相模式下成功分离了黄.
- 该柱通过混合双模式对水友和疏水化合物表现出色.
- 该材料避免了的溶解,并掩盖了来自二氧化基的强烈吸附.
- 取得了令人满意的稳定性和可重复性.
结论:
- PEI/Zein@SiO2列提供了一个多功能平台,用于分离和分析各种分析物.
- 齐恩修改显著提高了复杂样品的静止阶段的分离选择性.
- 这种新型材料显示出在静态相包装中用于高级染色学的应用潜力.
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