介孔情况下LC三周期最小表面固定相的色散特性

IF 3.8 2区化学 Q1 BIOCHEMICAL RESEARCH METHODS

Journal of Chromatography A Pub Date : 2025-04-01 DOI:10.1016/j.chroma.2025.465876

Carolina Lauriola , Ali Moussa , Gert Desmet , Alessandra Adrover

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引用次数: 0

摘要

研究了基于三周期最小表面（TPMS）的八种不同的可3D打印介孔固定相。从板高曲线和动力学性能因素两方面分析了不同区域保留系数k”值下它们的分离性能。采用确定分层保留多孔介质中色散张量的两区矩分析方法（TZMA）计算保留条件下的色散系数。相对于非保留（水动力）和表面保留情况，固定区内部孔隙度的贡献极大地改变了TPMS结构的色谱性能。基于薄片的TPMS结构是性能最好的几何形状，因为动力学图分析表明，最佳功能条件与与尖端3D打印机打印分辨率兼容的最佳单元格尺寸有关。

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Dispersion properties of triply periodic minimal surface stationary phases for LC: The mesoporous case

Eight different 3D printable mesoporous stationary phases based on triply periodic minimal surfaces (TPMS) are investigated. Their separation performances, for different values of the zone retention factor

k^{''}

, are analyzed in terms of plate height curves and kinetic performance factors. The two-zone moment analysis method (TZMA) for the determination of the dispersion tensor in hierarchical retentive porous media has been adopted to compute the dispersion coefficients under retentive conditions. The contribution of the internal porosity of the stationary zone drastically change the chromatographic performance of TPMS structures with respect to the non-retentive (hydrodynamic) and superficially retentive cases. Sheet-based TPMS structures are best performing geometries because the analysis of kinetic plots reveals that optimal functioning conditions are associated with optimal dimensions of the unit cell compatible with printing resolution of cutting-edge 3D printers.

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来源期刊

Journal of Chromatography A 化学-分析化学

CiteScore

7.90

自引率

14.60%

发文量

742

审稿时长

45 days

期刊介绍： The Journal of Chromatography A provides a forum for the publication of original research and critical reviews on all aspects of fundamental and applied separation science. The scope of the journal includes chromatography and related techniques, electromigration techniques (e.g. electrophoresis, electrochromatography), hyphenated and other multi-dimensional techniques, sample preparation, and detection methods such as mass spectrometry. Contributions consist mainly of research papers dealing with the theory of separation methods, instrumental developments and analytical and preparative applications of general interest.